Q.In small intestine, active absorption occurs in case of
a. Glucose
b. Amino acids
c. Na+
d. All the above

Step 1. Check glucose: glucose is absorbed into the blood against its concentration gradient by active transport.

Step 2. Check amino acids: amino acids are likewise actively transported into the blood.

Step 3. Check Na+: sodium ions are actively transported into the blood as well, and their movement in turn helps drive the facilitated transport of other nutrients such as fructose. …

Check each listed substance individually against the textbook's list of actively-transported nu …

• Picking only glucose or only amino acids without checking whether Na+ is also actively absorbed. …