181.

Which of the following pairs of hormones can easily pass through the cell membrane and binds to a receptor inside it (mostly in the nucleus)

• Insulin, glucagon

• Thyroxine, insulin

• Somatostatin, oxytocin

• Cortisol, testosterone

Assertion: The immune responses of old persons become weak.

Reason: Thymus is degenerated in old individuals resulting in a decreased production of thymosin

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Assertion: Adrenocorticotropic-Releasing Hormones (ARH) excite the anterior lobe of
pituitary gland to produce adrenocorticotropic hormone (ACTH).

Reason: ACTH stimulates the adrenal cortex to secrete its glucocorticoid and mineralocorticoid hormones.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Catecholamine in a normal person induces

• intense salivation

• alertness

• decrease in heart beat

• excessive urination.

Assertion: Less iodine intake causes goitre.

Reason: Less iodine in body decreases thyroxine secretion

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Which of the following is correct?

• Paneth cells secrete pepsinogen

• Parietal cells secrete hydrochloric acid

• Argentaffin cells secrete mucus

• Chief cells secrete gastrin

What is the effect of GnRH produced by hypothalamus?

• Stimulates the synthesis and secretion of androgens

• Stimulates secretion of milk in mammary glands

• Stimulates foetal ejection reflex

• Stimulates synthesis of carbohydrates from non- carbohydrates in liver

Assertion : Adrenaline is called an emergency hormone.

Reason : It acts on the cells of skeletal, cardiac, smooth muscles, blood vessels and fat cells

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false

Assertion : Insulin is antagonistic to glucagon.

Reason : It is an anabolic hormone.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Assertion : Pantothenic acid deficiency is probably the most common vitamin deficiency.

Reason : Macrocytic anaemia is a characteristic feature of pantothenic acid deficiency.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false