All the following statements regarding parathyroid hormone are correct except:
1. | It is a peptide hormone |
2. | It is regulated by a tropin secreted by anterior pituitary |
3. | It stimulates the process of bone resorption or demineralization |
4. | It stimulates calcium absorption from the digested food |
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Hormones which interact with intracellular receptors:
1. generate second messengers
2. depolarize the membrane of the target cells
3. stop the enzymatic actions of membrane proteins
4. regulate gene expression
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Glycosuria and ketonuria are diagnostic of:
1. Graves’ disease | 2. Addison’s disease |
3. Conn’s syndrome | 4. Diabetes mellitus |
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Match each item in Column I [Hormone] with one in Column II [Function] and select your answer from the codes given:
Column I |
Column II |
A. ADH |
a. Makes collecting duct permeable to water and urea |
B. PTH |
b. Stimulates osteoclasts |
C. LH |
c. Rupture of Graafian follicle leading to ovulation |
D. ANF |
d. Causes vasodilation |
Codes
A | B | C | D | |
1. | a | b | c | d |
2. | a | b | d | c |
3. | b | a | d | c |
4. | b | a | c | d |
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All the following are common second messengers involved in hormonal actions except:
1. Cyclic adenosine monophosphate
2. Inositol phosphate
3. Prostaglandins
4. Calcium
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The hormones of ‘flight or fight’ response:
1. are secreted by the zona glomerulosa of adrenal cortex
2. are commonly called as catecholamines
3. are released slowly over a period of time when required
4. do not act via a second messenger system
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Consider the following regarding the actions of steroidal hormones produced by human ovary:
I: | Estrogen is responsible for the development and maintenance of secondary sexual characters in females |
II: | Progesterone is a pregnancy hormone |
III: | Estrogen regulates female sexual behavior |
IV: | Progesterone stimulates the formation of alveoli in mammary glands |
Select correct statements from above statements
1. | I, II and III | 2. | I, II and IV |
3. | II, III and IV | 4. | I, II, III and IV |
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Identify the incorrect statement regarding thyroid gland:
1. | The two lobes are connected by an isthmus |
2. | Iodine is essential for synthesis of T3 and T4 by thyroid |
3. | The follicles are lined by cuboidal epithelium |
4. | All hormones secreted by thyroid are iodothyronines |
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Consider the functions given:
I. Stimulation of synthesis of androgens
II. Regulation of spermatogenesis
III. Induction of ovulation
IV. Maintenance of corpus luteum
The functions of LH will include:
1. I, II and III only | 2. I, III and IV only |
3. II, III and IV only | 4. I, II, III and IV |
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Identify the correct statements from the following:
I: | ANF is secreted by the right atrium of heart and causes vasodilation |
II: | Erythropoietin is secreted by kidney and stimulates bone marrow to produce RBC |
III: | Insulin-like growth factors are secreted by liver and play an important role in childhood growth, and has anabolic effects in adults |
1. | Only I and II | 2. | Only I and III |
3. | Only II and III | 4. | I, II and III |
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