Q.Choose the incorrect sentence from the following:
a. Bile juice emulsifies the fat.
b. Chyme is a digestive acidic food in stomach.
c. Pancreatic juice converts lipid into fatty acid and glycerol.
d. Enterokinase stimulates the secretion of pancreatic juice.

Step 1. Check (a): bile salts do emulsify fat by breaking large fat droplets into smaller globules, so this statement is correct.

Step 2. Check (b): chyme is exactly the acidic, partially digested, creamy food mass formed in the stomach, so this statement is correct.

Step 3. Check (c): pancreatic lipase does hydrolyse fat (lipid) into fatty acid and glycerol, so this statement is correct.

Step 4. Check (d): enterokinase is an intestinal-mucosa enzyme whose real job is to activate trypsinogen into active trypsin — it plays no role in triggering the secretion of pancreatic juice itself, which is instead stimulated by the hormones secretin and cholecystokinin. This makes (d) the incorrect statement.

Check each statement against the known role of the enzyme/juice named, and flag the one that misassigns a function.

• Confusing enterokinase's enzyme-activation role with the hormonal control of pancreatic secretion.
• Assuming any statement mentioning bile or pancreatic juice must be the 'odd one out' without checking the actual chemistry.