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Q. No.The 24-hours (diurnal) rhythm of our body such as the sleep-wake cycle is regulated by the hormone:
1. melatonin
2. calcitonin
3. prolactin
4. adrenaline
1. melatonin
2. calcitonin
3. prolactin
4. adrenaline
Subtopic: Pineal Gland |
98%
From NCERT
AIPMT - 2011
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Select the correct matching of a hormone, its source and its function:
| Hormone | Source | Function | |
| 1. | Norepineph rine |
Adrenal medulla | Increases heartbeat, rate of respiration and alertness |
| 2. | Glucagon | Beta-cells of Islets of Langerhans |
Stimulates glycogenolysis |
| 3. | Prolactin | Posterior pituitary |
Regulates growth of mammary glands and milk formation in females |
| 4. | Vasopressin | Posterior pituitary |
Increases loss of water through urine |
Subtopic: Adrenal Medulla |
80%
From NCERT
AIPMT - 2010
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Select the option which correctly matches the endocrine gland with its hormone and its function:
| Endocrine gland | Hormone | Functions | |
| 1. | Placenta | estrogen | initiates secretion of milk |
| 2. | Corpus luteum | estrogen | essential for the maintenance of endometrium |
| 3. | Leydig cells | androgen | initiates the production of sperm |
| 4. | Ovary | FSH | stimulates follicular development and the secretion of estrogens |
Subtopic: Gonadotropin & Gonadal Hormones |
64%
From NCERT
NEET - 2013
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Norepinephrine:
a. is released by sympathetic fibers
b. is released by parasympathetic fibers
c. increases the heart rate
d. decreases blood pressure
Which of the above said statements are correct?
1. a and c
2. b and c
3. b and d
4. a and d
a. is released by sympathetic fibers
b. is released by parasympathetic fibers
c. increases the heart rate
d. decreases blood pressure
Which of the above said statements are correct?
1. a and c
2. b and c
3. b and d
4. a and d
Subtopic: Adrenal Medulla |
60%
From NCERT
NEET - 2013
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Which of the following represents the action of insulin?
| 1. | Increases blood glucose levels by stimulating glucagon production |
| 2. | Decreases blood glucose levels by forming glycogen |
| 3. | Increases blood glucose level by promoting cellular uptake of glucose |
| 4. | Increases blood glucose levels by hydrolysis of glycogen |
Subtopic: Pancreas: I |
77%
From NCERT
NEET - 2013
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Which hormone causes dilation of blood vessels, increased oxygen consumption, and glucogenesis?
1. ACTH
2. Insulin
3. Adrenalin
4. Glucagon
Subtopic: Adrenal Medulla |
55%
From NCERT
AIPMT - 2006
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Which of the following is an accumulation and release centre of neurohormones?
| 1. | Posterior pituitary lobe |
| 2. | Intermediate lobe of the pituitary |
| 3. | Hypothalamus |
| 4. | Anterior pituitary lobe |
Subtopic: Pituitary & Hypothalamus | Adenohypophysis & Hypothalamus |
51%
From NCERT
AIPMT - 2006
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Which one of the following is not a second messenger in hormone action?
1. cGMP
2. Calcium
3. Sodium
4. cAMP
Subtopic: Mechanism of Hormone Action |
67%
AIPMT - 2006
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A steroid hormone which regulates glucose metabolism is:
1. cortisol
2. corticosterone
3. 11-deoxycorticosterone
4. cortisone
Subtopic: Adrenal Cortex: Cortisol |
87%
From NCERT
AIPMT - 2006
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Which one of the following does not act as a neurotransmitter?
1. Acetylcholine
2. Epinephrine
3. Nor epinephrine
4. Cortisone
Subtopic: Adrenal Medulla | Adrenal Cortex: Cortisol | Mechanism of Hormone Action |
76%
AIPMT - 2006
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