Choose the Correct Answers

Zoology

Chemical Coordination and Integration

Evaluation

Choose the Correct Answers

1. The maintenance of constant internal environment is referred as

a. Regulation

b. homeostasis

c. co-ordination

d. hormonal control

2. Which of the following are exclusive endocrine glands?

a. Thymus and testis

b. adrenal and ovary

c. parathyroid and adrenal

d. pancreas and parathyroid

3. Which of the following hormone is not secreted under the influence of pituitary gland?

a. thyroxine

b. insulin

c. oestrogen

d. glucocorticoids

4. Spermatogenesis in mammalian testes is controlled by

a. Luteinising hormone

b. Follicle stimulating hormone

c. FSH and prolactin

d. GH and prolactin

5. Serum calcium level is regulated by

a. Thyroxine

b. FSH

c. Pancreas

d. Thyroid and parathyroid

6. Iodised salt is essential to prevent

a. rickets

b. scurvy

c. goitre

d. acromegaly

7. Which of the following gland is related with immunity?

a. Pineal gland

b. adrenal gland

c. thymus

d. parathyroid gland

8. Which of the following statement about sex hormones is correct?

a. Testosterone is produced by Leydig cells under the influence of luteinizing hormone

b. Progesterone is secreted by corpus luteum and softens pelvic ligaments during child birth

c. Oestrogen is secreted by both sertoli cells and corpus luteum

d. Progesterone produced by corpus luteum is biologically different from the one produced by placenta.

9. Hypersecretion of GH in children leads to

a. Cretinism

b. Gigantism

c. Graves disease

d. Tetany

10. 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. Low secretion of growth hormone

b. Cancer of the thyroid gland

c. Over secretion of pars distalis

d. Deficiency of iodine in diet.

11. The structure which connects the hypothalamus with anterior lobe of pituitary gland is the

a. Dendrites of neuro hypophysis

b. Axons of neurohypophysis

c. Bands of white fibers from cerebellar region

d. Hypophysial portal system

12. Which one of the following statement is correct

a. Calcitonin and thymosin are thyroid hormones

b. Pepsin and prolactin are secreted in stomach

c. Secretin and rhodopsin are polypeptide hormones

d. Cortisol and aldosterone are steroid hormones

13. which of the given option shows all wrong statements for thyroid gland

Statements

(i) It inhibits process of RBC formation

(ii) It helps in maintenance of water and electrolytes

(iii) Its more secretion can reduce blood pressure

(iv) It Stimulates osteoblast

(a) (i) and (ii)

(b) (iii) and (iv)

(c) (i) and (iv)

(d) (i) and (iii)