Ques. The process by which they synthesis of a Hormone is regulated by its concentration in the blood is termed as
(a) Forward excitation
(b) Feedback inhibition
(c) The equilibrium mechanism
(d) The opposing synthesis theory
Ans: (b)

Ques. Which endocrine gland stores its secretion in extracellular space before discharging it into the blood
(a) Adrenal
(b) Pancreas
(c) Testis
(d) Thyroid
Ans: (d)

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Ques. Steroid hormones are almost similar in structure to
(a) Cholesterol
(b) Triglycerides
(c) Tyrosine
(d) Coenzyme A
Ans: (a)

Ques. At menopause, there is a rise in urinary excretion of
(a) STH
(b) LTH
(c) MSH
(d) FSH
Ans: (d)

Ques. Why thyroxine is a hormone not an enzyme
(a) It is secreted in small quantity
(b) It is not a polypeptide
(c) It has no special effect
(d) It is directly poured into blood
Ans: (d)

Ques. Receptors for protein hormones are located
(a) In cytoplasm
(b) On cell surface
(c) In nucleus
(d) On endoplasmic reticulum
Ans: (b)

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Ques. Gland that urges you to “fight or flight” in adverse situation is
(a) Adrenal
(b) Pituitary
(c) Thyroid
(d) Parathyroids
Ans: (a)

Ques. Hormones taken in the form of drugs for contraception are
(a) Aldosterone
(b) Estrogens and progesterone
(c) Cortisol
(d) Testosterone
Ans: (b)

Ques. Life saving hormones are secreted by
(a) Pituitary
(b) Pineal
(c) Adrenals
(d) Thyroid
Ans: (c)

Ques. Some athletes take ‘‘steroids’’ in an attempt to enhance their physical performance. This can lead to decreased sperm production and even sterility. What is the most likely explanation for this effect ?
(a) Interference in the proper negative feedback control of testosterone by luteinizing hormone
(b) Increased stimulation of the anterior pituitary to produce luteinizing hormone
(c) Excessive grwoth of testicular tissue
(d) Suppression of the natural production of thyroxin due to the desctruction of thyroid tissue
Ans: (a)

Ques. Steroid hormones
(a) Pass easily through cell membranes to act in the nucleus
(b) Include testosterone, estrogen and growth hormone
(c) Are only produced in the pituitary gland
(d) Stimulate liver cells to convert glucose to glycogen
Ans: (a)

Ques. Which disease is caused by the deficiency of thyroxin in the adults
(a) Diabetes incipidus
(b) Diabetes mellitus
(c) Myxoedema
(d) Exopthalmic goiter
Ans: (c)

Ques. Gonadotrophic hormone is produced in
(a) Interstitial cells of testis
(b) Adrenal cortex
(c) Adenohypophysis
(d) Ovary
Ans: (c)

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Ques. A molecule acting as second messenger in biological system is
(a) c-DNA
(b) c-AMP
(c) t-RNA
(d) hn-RNA
Ans: (b)

Ques. Which one is correctly matched
(a) Relaxin – Gigantism
(b) Prolactin – Cretinism
(c) Parathyroid hormone – Tetany
(d) Insulin – Diabetes insipidus
Ans: (c)

Ques. If adrenal cortex function is impaired, it results in   decreased concentration of one of the  following in the blood
(a) Ammonium salts
(b) Sodium salts
(c)  Glucose
(d) Calcium salts
Ans: (b)

Ques. Parathormone is secreted when there is
(a) Increased Ca2+ level
(b) Decreased blood Ca2+ level
(c) Increased blood sugar level
(d) Decreased blood sugar level
Ans: (b)

Ques. Glucose level of blood is controlled by
(a) Liver
(b) Gall bladder
(c) Ileum
(d) Duodenum
Ans: (a)

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Ques. FSH (follicle stimulating hormone) is produced by
(a) Adrenal cortex
(b) Anterior pituitary lobe
(c) Middle pituitary lobe
(d) Posterior pituitary lobe
Ans: (b)

Ques. Hormone responsible for aggressive behaviour of an animal is
(a) Adrenaline
(b) Thyroxine
(c) ADH
(d) Testosterone
Ans: (a)

Ques. The hormone secreted by intermediate lobe of pituitary is
(a) Oxytocin
(b) Intermedin
(c) Vasopressin
(d) FSH
Ans: (b)

Ques. Intermediate lobe of pituitary secretes a hormone
(a) Oxytocin
(b) Melanocyte stimulating hormone
(c) Corticotropin releasing hormone
(d) Thyrotropin releasing hormone
Ans: (b)

Ques. Antiageing hormone is
(a) Thyroxine
(b) Melatonin
(c) Estrogen
(d) Testosterone
Ans: (b)

Ques. Whcih of the following becomes nonfunctional after use
(a) Enzymes
(b) Hormones
(c) Minerals
(d) All of these
Ans: (b)

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Ques. Degeneration of anterior pituitary results into
(a) Sterility
(b) Extreme weakness
(c) Hypoglycaemia
(d) All of the above
Ans: (d)

Ques. Which one of the following four glands is correctly matched with the accompanying description ?
(a) Thyroid–hyperactivity in young children cause cretinism
(b) Thymus–starts undergoing atrophy after puberty
(c) Parathyroid–secretes parahormone which promotes movement of calcium ions from blood into bones during calcification
(d) Pancreas–Delta cells of the islets of Langerhans secrete a hormone which stimulates glycolysis in liver
Ans: (b)

Ques. Which one affects liver, muscle and adipose tissue
(a) Androgen
(b) Insulin
(c) Progesterone
(d) Glucagon
Ans: (b)

Ques. Which one of the following statements is correct ?
(a) Endocrine glands regulate neural activity, but not vice versa
(b) Neurons regulate endocrine activity, but not vice versa
(c) Endocrine glands regulate neural activity, and nervous system regulates endocrine glands
(d) Neither hormones control neural activity nor the neurons control endocrine activity
Ans: (b)

Ques. Growth hormone is produced in
(a) Pituitary
(b) Adrenal
(c) Thyroid
(d) Gonad
Ans: (a)

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Ques. Adrenocorticotropin is a hormone of
(a) Pituitary
(b) Adrenal
(c) Thyroid
(d) Adrenal medulla
Ans: (a)

Ques. Hormone released by posterior lobe of pituitary is concerned with
(a) Metabolism of carbohydrates
(b) Stimulation of thyroid
(c) Secondary sexual characters
(d) Contraction of uterus
Ans: (d)

Ques. Some hormones check the milk from being secreted by the mammary glands till the birth of young ones even though the glands are all prepared to do so. They are
(a) Progestin and prolactin
(b) Prolactin and FSH
(c) Estrin and prolactin
(d) Estrin and progestin
Ans: (a)

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