A young infant may be feeding entirely on mother's milk, which is white in colour but the stools, which the infant passes out are quite yellowish. What is this yellow colour due to?
1. Intestinal juice
2. Bile pigments passed through bile juice
3. Undigested milk protein casein
4. Pancreatic juice poured into duodenum

Cattle fed with spoilt hay of sweet clover which contains dicumarol
1. are healthier due to a good diet
2. catch infections easily
3. may suffer vitamin K deficiency and prolonged bleeding
4. may suffer from beri beri due to deficiency of B vitamins

Assertion: Pernicious anemia is preventable with balanced diet or with supplements.
Reason: Most green leafy vegetables have an adequate amount of B₁₂ that can prevent pernicious anemia.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: The microvilli of small intestinal epithelium are important for the final step of digestion of carbohydrates especially.
Reason: The microvilli that constitute the brush border have enzymes for this final part of digestion anchored into their apical plasma membrane as integral membrane proteins.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: In humans none of the lipases act in an acidic pH.
Reason: All lipases require bile salts for their activation.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: In the fetus, the liver does not perform the normal digestive processes.
Reason: In infants nutrients are received directly from the mother via the placenta.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: Defecation is frequently accompanied by urination.
Reason: During defecation, the external sphincter muscles relax.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: Secretin is released into circulation in response to low duodenal pH.
Reason: Secretin primarily functions to neutralize the pH in the duodenum, allowing digestive enzymes from the pancreas to function optimally.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: Gastrin is a peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach.
Reason: It acts on enterochromaffin like cells that release histamine which stimulates the parietal cells.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.

Assertion: The defining sign of kwashiorkor in a malnourished child is pitting edema (swelling of the ankles and feet).
Reason: Kwashiorkor is inadequate energy intake in all forms, including protein.

1. Both assertion and reason are true and the reason is the correct explanation of the assertion.
2. Both assertion and reason are true but the reason is not the correct explanation of the assertion.
3. Assertion is true but reason is false.
4. Both assertion and reason are false.