HORMONE SYSTEM

1. Synthesis and secretion of some hormones are – 

(a) Under control of nerves

(b) Under control of muscles

(c) Under control brain

(d) Under control of autonomic nervous system

11. The hormone first to be isolated was – 

(a) Epinephrine (b) Insulin

(c) Thyroxine (d) Testosterone

2. The hormones secreted by endocrine system can also act

as – 

(a) Enzymes (b)Vitamins

(c) Co-factors (d) None of these

12. The antagonisti hormones are – 

(a) HCG – Oxytocin

(b) FSH – LH

(c) Estrogen – Progesterone

(d) Insulin – Glucagon

3. Hypothalamic nuclei are located in – 

(a) Epiphysis

(b) Posterior lobe of pituitary

(c) Prosencephalon

(d) Floor of third cerebral ventricle of the brain

13. In mammals which of the following does not secr 

any hormoe – 

(a) Pancreas (b) Thyroid

(c) Liver (d) Pituitary

4. The posterior lobe of pituitary secretes two hormones – 

vasopressin and oxytocin. These hormones of posterior 

 pituitary are secreted by-

(a) The cell of posterior lobe of pituitary itself 

(b) Some hypothalamic neurons and are released at

the time of need.

(c) Some hypothalamic neurons but remain stored

in their axon terminals inside. The postesior lobe of 

 pituitary.

(d) Cells of anterior lobe of pituitary but remain

stored in axon terminals inside the posterior lobe of 

 pituitary.

14. Sympathin was the previous name of 

(a) Thyroxine (b) Nor-adrenaline

(c) Adrenaline (d) None of the abov

15. Most of the contraceptive pills contain – 

(a) Progesterone +LH

(b) FSH + LH

(c) Estrogen + Progesterone

(d) Estrogen + FSH

5. The thyroid gland secretes thyroxine hormone. Function

of thyroxine is – 

(a) It increases metabolic rate and maintains BMR 

(b) It promotes growth of body tissues and brain

(c) It stimulates differentiation of tissue.

(d) All of the above

16. All hormones produced by ovary are – 

(a) Steroids only

(b) Proteins only

(c) Proteins and steroids

(d) None of the above

6. Parathormone increases the concentration of calcium

ions in the blood plasma by-

(a) Increasing utilization of calcium

(b) Increasing phosphate elimination in urine

(c) Mobilising more calcium from bones to the

 plasma

(d) All of the above

17. Which hormone causes emotional disturbances – 

(a) Adrenaline (b) Oxytocin

(c) Vasopressin (d) Thyroxine

7. The aggressive bull can be changed into docile ox by-

(a) Removing anterior lobe of pituitary

(b) Removing adrenal cortex

(c) Surgical removal of testes

(d) All of the above

18. Orchidectomy is removal of 

(a) Ovary (b) Kidney

(c) Spleen (d) Testes

8. In females estrogen hormones are secreted at the time of 

 puberty. Estrogens stimulate – 

(a) Growth and maturation of uterus

(b) Growth an maturation of fallopian tubes

(c) Growth and maturation of mammary glands

(d) All of the above

19. Which hormone stops the secretion of HCI from

 parietal cells of stomach-

(a) Enterogastron (b) Gastrin

(c) Enterokinase (d) Secretin

9. Which of the following is a local hormone – 

(a) Rennin (b) Geradiol

(c) Prostaglandin (d) Civetone

20. Cretinism in children is caused by – 

(a) Hypopituitrism

(b) Hypoparathyroidism

(c) Hypo-insulin-secretion

(d) Hypothyrodism

10. Receptors for neurotransmitters such as acetylcholine

are present – 

(a) In mitochondria and ER  

21. Growth hormone work properly

(a) Without insulin (b) With insulin

(c) With thyroxine (d) Without

 

(b) In cytaplasm

(c) In the nucleus

(d) On the surface of plasma membrane

adrenalin

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