Multiple Choice QuestionsWhich 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
A.
Stimulates the synthesis and secretion of androgens
Gonadotropin Releasing Hormone (GnRH) is a releasing hormone. It stimulates the anterior lobe of the pituitary gland to secrete two gonadotropic hormones- FSH (Follicle Stimulating Hormone) and LH (Luteinising Hormone).
In males, LH stimulates testosterone production from the interstitial cells of the testes (leydig cells). FSH stimulates testicular growth and enhances the production of an androgen- binding protein by the Sertoli cells, which are a component of the testicular tubule necessary for sustaining the maturing sperm cells.
In females, FSH stimulates the growth of ovarian follicles in the ovary before the release of an egg from one follicle at ovulation. It also increases oestradiol production. LH triggers ovulation and development of the corpus luteum.
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
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