Zoology Chemical Coordination and Integration Notes Pdf - 1

Question: 1

Why is parathormone called hypercalcemic hormone?

(A) It increases blood potassium level

(B) It increases blood calcium level

(C) It decreases blood potassium level

(D) It decreases blood calcium level

Question: 2

Which of the following statement about sex hormones is correct?

(A) Progesterone produced by corpus luteum is biologically different from the one produced by placenta

(B) Oestrogen is secreted by both sertoli cells and corpus luteum

(C) Progesterone is secreted by corpus luteum and softens pelvic ligaments during child birth

(D) Testosterone is produced by Leydig cells under the influence of luteinizing hormone

Question: 3

Spermatogenesis in mammalian testes is controlled by?

(A) FSH and prolactin

(B) Follicle stimulating hormone

(C) Luteinising hormone

(D) Follicle stimulating hormone

Question: 4

A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence quotient and abnormal skin.This is the result of

(A) Cancer of the thyroid gland

(B) Over secretion of pars distalis

(C) Deficiency of iodine in diet

(D) Low secretion of growth hormone

Question: 5

Which of the following hormones prepares the body for meeting emergency situations?

(A) Aderenalin and noradrenalin

(B) Glucocorticoids and mineralocorticoids

(C) Cortisol and Aldosterone

(D) Glucocorticoids and corticosterone