Q. No.The 24 h (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
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A pregnant female delivers a baby who suffers from stunted growth, mental retardation, low intelligence quotient and abnormal skin. This is the result of
1. Deficiency of iodine in diet
2. Low secretion of growth hormone
3. Cancer of the thyroid gland
4. Over secretion of pars distalis
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A chemical signal that has both endocrine and neural roles is
| 1. | Melatonin | 2. | Calcitonin |
| 3. | Epinephrine | 4. | Cortisol |
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Which one of the following hormones though synthesized elsewhere, is stored and released by the master gland?
1. Melanocyte stimulating hormone
2. Antidiuretic hormone
3. Luteinizing hormone
4. Prolactin
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The amino acid tryptophan is the precursor for the synthesis of
1. Melatonin and serotonin
2. Thyroxine and triiodothyronine
3. Estrogen and progesterone
4. Cortisol and cortisone
Which hormones do stimulate the production of pancreatic juice and bicarbonate?
1. Gastrin and insulin
2. Cholecystokinin and secretin
3. Insulin and glucagon
4. Angiotensin and epinephrine
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Which of the following is an amino acid derived hormone?
1. Estradiol
2. Ecdysone
3. Epinephrine
4. Estriol
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Figure shows human urinary system with structures labelled (a) to (d). Select option which correctly identifies them and gives their characteristics and/or functions.
1. (a) Adrenal gland-located at the anterior part of kidney.
Secretes catecholamines which stimulate glycogen break-down
2. (b) Pelvis-board funnel shaped space inner to hilum, directly connected to loops of Henle
3. (c) Medulla-inner zone of kidney and contains complete nephrons
4. (d) Cortex-outer part of kidney and do not contain any part of nephrons
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Somatostatin from the hypothalamus:
| 1. | stimulates secretion of insulin and glucagon by pancreas |
| 2. | inhibits secretion of insulin and glucagon by pancreas |
| 3. | stimulates secretion of growth hormone from anterior pituitary |
| 4. | inhibits secretion of growth hormone from anterior pituitary |
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Identify the incorrectly matched pair:
| 1. | Hyposecretion of growth hormone in childhood | Dwarfism |
| 2. | Hyposecretion of growth hormone in adulthood | Cretinism |
| 3. | Hypersecretion of growth hormone in childhood | Gigantism |
| 4. | Hypersecretion of growth hormone in adulthood | Acromegaly |
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