- 1(current)
Q. No.Match each item in Column I [Hormone] with one in Column II [Chemical class] and select your answer from the codes given:
|
Column I |
|
Column II |
|
|
A. |
ACTH |
a. |
Peptide |
|
B. |
Estradiol |
b. |
Steroid |
|
C. |
Thyroxine |
c. |
Amino-acid derived |
|
D. |
Epinephrine |
d. |
Iodothyronine |
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 |
Which pair of hormones will both bind to membrane bound receptors located on its target cells?
1. Epinephrine and thyroxine
2. Calcitonin and glucagon
3. Estradiol and triiodothyronine
4. Adrenaline and aldosterone
All the following are common second messengers involved in hormonal actions except:
1. Cyclic adenosine monophosphate
2. Inositol phosphate
3. Prostaglandins
4. Calcium
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
Some hormones can act on their target cells through second messengers. Identify the one that does not:
| 1. | cortisol | 2. | adrenaline |
| 3. | FSH | 4. | calcitonin |
| I: | FSH is hydrophilic and hence cannot enter the cell and therefore acts via a second messenger. |
| II: | The second messenger will cause physiological responses after binding to a receptor present in the nucleus of the cells and then influencing the level of gene expression in the target cell. |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
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Q. No.
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