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Zoology · Class 12 Science

Ch 7Human Health and Diseases — Class 12 Zoology, concept-first.

The World Health Organization defines health as a state of complete physical, mental and social wellbeing, not merely the absence of disease — as the saying goes, 'health is wealth.' A healthy population is also a more efficient, more productive one: good health increases longevity and lowers both infant and adult mort…

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Life Cycle of Plasmodium (Malaria)

Malaria is caused by Plasmodium species — P. vivax, P. ovale, P. malariae and P. falciparum — each producing a distinctly named type of malaria with its own erythrocytic-cycle duration (48 hours for vivax/ovale, 72 hours…

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Chapter contents

The NCERT structure, section by section. Open a section to see its questions, then read the concept-first solution.

Introduction

The World Health Organization defines health as a state of complete physical, mental and social wellbeing, not merely the absence of disease — as the saying goes, 'health is wealth.' A healthy populat…

7.1

Common diseases in human beings

A disease is any disorder or malfunction of the body or mind. It can arise from environmental factors, disease-causing organisms (pathogens), genetic anomalies, or lifestyle choices, and it disturbs t…

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.1.1

Bacterial and viral diseases

Bacterial diseases: Although thousands of bacterial species exist, only a small number are pathogenic to humans. These bacteria often act by releasing toxins that damage host tissue.

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.1.2

Protozoan diseases

About fifteen genera of protozoans parasitize the human body. Four are covered here in depth:

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.1.3

Fungal diseases

Fungi were recognized as a cause of human disease even before bacteria were. Dermatomycosis, a cutaneous (skin-surface) fungal infection, is caused by fungi of the genera Trichophyton, Microsporum and…

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.1.4

Helminthic diseases

Helminthes (parasitic worms) mostly live as endoparasites in the human gut and blood, causing a group of diseases called helminthiasis. Two are highlighted here:

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.2

Maintenance of personal and public hygiene

The WHO defines hygiene as the conditions and practices that help maintain health and prevent the spread of disease.

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.3

Adolescence – Drug and alcohol abuse

Adolescence spans roughly 12 to 19 years of age, beginning with the rapid physical and sexual changes of puberty and continuing as a period of significant psychological and social change.

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.3.1

Addiction and dependence

Addiction is a physical or psychological need to keep using a substance — such as alcohol — to a degree that becomes harmful, and it can be personally destructive, costing an addict their job, home, m…

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.3.2

Effects of drugs and alcohol

Short-term effects of drugs and alcohol appear within minutes of intake and are brief: a false sense of well-being, pleasant drowsiness, euphoria, dulled senses, altered behaviour and blood pressure,…

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.3.3

Prevention and control

Preventing drug and alcohol abuse is practically achievable through a combination of measures:

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.4

Mental health – Depression

Mental health is a state of well-being of the mind, closely tied to healthy self-esteem — liking oneself and being able to stand up for what one believes is right.

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview
7.5

Lifestyle disorders in human beings

The old adage 'health is wealth' applies directly here: modern lifestyle changes have introduced many emerging medical conditions that reduce human longevity.

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview

EVALUATION

The chapter closes with a single continuous Evaluation exercise of 25 questions spanning multiple-choice items on pathogens and the Plasmodium life cycle, a fertilization/gametocyte/sporozoite/schizog…

+Evaluation25 questions
  1. Q1Malaria caused by Plasmodium is transmitted through-------- a) Air b) Contact c) Fleas on food d) Mosquito bitesFree
  2. Q2A 30 year old woman has bleedy diarrhoea for the past 14 hours, which one of the following organisms is likely to cause this illness? a) Str…Free
  3. Q3Which of the following disease is spread through droplet nuclei? a) Tularemia b) Listeriosis c) Chicken pox d) MumpsFree
  4. Q4Exo-erythrocytic schizogony of Plasmodium takes place in ------- a) RBC b) Leucocytes c) Stomach d) LiverPreview
  5. Q5The sporozoites of Plasmodium vivax are formed from ------------ a) Gametocytes b) Sporoblasts c) Oocysts d) SporesPreview
  6. Q6Poliomyelitis which causes infantile paralysis enters the body through………. a) Skin b) Mouth and nose c) Ears d) EyesPreview
  7. Q7Amphetamines are stimulants of the CNS, whereas barbiturates are ---- a) CNS stimulant b) both a and b c) hallucinogenic d) CNS depressantsPreview
  8. Q8Marijuana is extracted from a) Dried leaves and flowers of hemp plant. b) Ergot fungus c) Roots of hemp plant d) Cocoa plantPreview
  9. Q9Choose the correctly match pair. a) Amphetamines - Stimulant b) LSD - Narcotic c) Heroin - Psychotropic d) Benzodiazepine - Pain killerPreview
  10. Q10The Athlete's foot disease in human is caused by------- a) Bacteria b) Fungi c) Virus d) ProtozoanPreview
  11. Q11Cirrhosis of liver is caused by chronic intake of ------ a) Opium b) Alcohol c) Tobacco d) CocainePreview
  12. Q12The sporozoite of the malarial parasite is present in ---- a) saliva of infected female Anopheles mosquito. b) RBC of human suffering from m…Preview
  13. Q13Haemozoin is a) A precursor of haemoglobin. b) A toxin from Streptococcus. c) A toxin from Plasmodium species. d) A toxin from Haemophilus s…Preview
  14. Q14The drug synthesised from Datura is a) Hallucinogen b) Depressant c) Stimulant d) Pain killerPreview
  15. Q15Where do the following events in the life cycle of Plasmodium takes place? a) Fertilization - _________ b) Development of gametocytes - ____…Preview
  16. Q16Match the pathogens with respective diseases caused by them and select the correct match using the codes given below. I. Leishmania donavani…Preview
  17. Q17Complete the following table Diseases | Causative agent | Site of infection | Incubation period Mumps | | | Chicken pox | | | Dengue fever |…Preview
  18. Q18List the causative agent, mode of transmission and symptoms for Diphtheria and Typhoid.Preview
  19. Q19Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  20. Q20A patient was hospitalized with fever and chills. Merozoites were observed in her blood. What is your diagnosis?Preview
  21. Q21(i) Write the scientific name of the filarial worm that causes filariasis. (ii) Write the symptoms of filariasis. (iii) How is this disease…Preview
  22. Q22List the common withdrawal symptoms of drugs and alcohol abuse.Preview
  23. Q23Complete the given table. Diseases | Causative agent | Symptoms Ascariasis | | Ascariasis | Trichophyton | Appearance of dry, scaly lesions…Preview
  24. Q24What is Kala-azar?Preview
  25. Q25Why do you think it is not possible to produce vaccine against 'common cold'?Preview

Sample & Board Papers

Sample papers and previous-year board questions for this subject.

+Show 49 questions49 questions
  1. Q1Histamine is secreted by : (a) Epithelial cells (b) Mast cells (c) Red blood cells (d) White blood cellsPreview
  2. Q2Which converts RNA genome into DNA in HIV ? (a) DNA ligase (b) Restriction endonuclease (c) Reverse transcriptase (d) DNA polymerasePreview
  3. Q3Black water fever is caused by : (a) Plasmodium vivax (b) Plasmodium malariae (c) Plasmodium ovale (d) Plasmodium falciparumPreview
  4. Q4Define BMI.Preview
  5. Q5Explain Cardio-Pulmonary Resuscitation.Preview
  6. Q6Differentiate embolus from Thrombus.Preview
  7. Q7Mention any three functions of Nephron.Preview
  8. Q8What are the three zones of Adrenal Cortex ?Preview
  9. Q9What are the symptoms of AIDS defined by WHO ?Preview
  10. Q10Write about Hernia and Appendicitis in detail.Preview
  11. Q11What are the symptoms of Rickets ?Preview
  12. Q12Define the term Chronic Bronchitis.Preview
  13. Q13What is Myocardial infarction ?Preview
  14. Q14Write a brief note on REM sleep.Preview
  15. Q15What are auditory ossicles ?Preview
  16. Q16What are the methods of diagnosis of AIDS ?Preview
  17. Q17Explain the phases of healing of bones in fracture.Preview
  18. Q18How does kidney stones develop ? Mention the symptoms and treatment.Preview
  19. Q19Describe the Scolex of Taenia solium with diagram.Preview
  20. Q20Describe the process of digestion in small intestine.Preview
  21. Q21Write an essay on refractive errors of an eye and their corrective measures.Preview
  22. Q22Describe the life cycle of Ascaris.Preview
  23. Q23HIV is a member of the sub-family ________. (a) Rhabdovirus (b) Pencillia (c) Vaccinia (d) LentivirinaePreview
  24. Q24The first moult of Ascaris larva results in ________ larva. (a) Hexacanth (b) Cysticercus (c) Rhabditi form (d) OnchospherePreview
  25. Q25What is exogenous phase in the lifecycle of Ascaris ?Preview
  26. Q26Find the true and false statements from the following : (i) Plasmodium vivax is a digenic parasite. (ii) The life cycle of Plasmodium involv…Preview
  27. Q27Compare and contrast bacillary dysentery and amoebic dysentery.Preview
  28. Q28Haemozoin is : (a) A toxin from plasmodium species (b) A precursor of haemoglobin (c) A toxin from haemophilus species (d) A toxin from stre…Preview
  29. Q29How does the trophozoite of Amoebiasis reach the final destination in our body ?Preview
  30. Q30Is vaccine available against malaria ? Give reason for your answer.Preview
  31. Q31Exo-erythrocytic schizogony of Plasmodium takes place in : (a) Stomach (b) RBC (c) Liver (d) LeucocytesPreview
  32. Q32Vaccine is not produced against Chickenpox. Why ?Preview
  33. Q33AIDS is not a disease. But it facilitates the attack by other organisms. Why ?Preview
  34. Q34(a) What are the steps to be adopted to lead healthy life style ? **OR** (b) Write the differences between primary and secondary immune resp…Preview
  35. Q35Match the pathogens with respective diseases caused by them and select the correct match using the codes given below : (A) Leishmania donava…Preview
  36. Q36Write the common withdrawal symptoms of drugs and alcohol abuse.Preview
  37. Q37Haemozoin is : (a) A toxin from Plasmodium species (b) A precursor of haemoglobin (c) A toxin from Haemophilus species (d) A toxin from Stre…Preview
  38. Q38Complete the following table. [table: three columns 'Diseases' | 'Causative agent' | 'Site of infections', printed with the Diseases column…Preview
  39. Q39Which of the following groups of diseases have been controlled by the use of vaccines and by creating awareness among the people ? (a) Small…Preview
  40. Q40What do you think about it is not possible to produce vaccine against "common cold" ?Preview
  41. Q41A patient with bone pain is approaching a doctor, stating that he has tender bones and brittleness of the bones. He is asking for treatment…Preview
  42. Q42The mineral which is involved in hormone synthesis: (a) Iodine (b) Sodium (c) Phosphorus (d) CopperPreview
  43. Q43The most promising chemotherapeutic agent for treating viral disease is: (a) Interferon (b) Tetracycline (c) Anthramycin (d) AmpicillinPreview
  44. Q44What does the term Zoo-anthroponosis refer to?Preview
  45. Q45What is Physiotherapy?Preview
  46. Q46What are the uses of stethescope?Preview
  47. Q47Describe the pathogenic adaptation of micro-organism.Preview
  48. Q48Write a note on control and preventive measures of AIDS.Preview
  49. Q49Explain the Viral diseases in human beings.Preview