Changes in GnRH pulse frequency in females is controlled by circulating levels of:-
(1) estrogen and inhibin
(2) progesterone only
(3) progesterone and inhibin
(4) estrogen and progesterone
Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?
1. Insulin Thyroid hormone
2. Aldosterone Atrial Natriuretic Factor
3. Relaxin Inhibin
4. Parathormone Calcitonin
Which one of the following hormones is not involved in sugar metabolism?
1. Cortisone
2. Aldosterone
3. Insulin
4. Glucagon
Which one of the following hormones though synthesised elsewhere, is stored and
released by the master gland?
1. Antidiuretic hormone
2. Luteinizing hormone
3. Prolactin
4. Melanocyte stimulating hormone
A chemical signal that has both endocrine and neural roles is
(1) melatonin
(2) calcitonin
(3) epinephrine
(4) cortisol
Fight or flight reactions cause activation of
1. the parathyroid glands, leading to increased metabolic rate
2. the kidney, leading to suppression of reninangiotensin-aldosterone pathway
3. the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine
4. the pancreas leading to a reduction in the blood sugar levels
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
Which of the following statement is correct in relation to the endocrine system?
1. Adenohypophysis is under direct neural regulation of the hypothalamus
2. Organs in the body like gastrointestinal tract. heart, kidney and liver do not produce any hormones
3. Non-nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones
4. Releasing and inhibitory hormones are produced by the pituitary gland
Select the answer which correctly matches the endocrine gland with the hormone it
secretes and its function/deficiency symptom
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Endocrine gland Hormone Function/deficiency symptoms
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1. Anterior pituitary Oxytocin Stimulates uterus contraction during
child birth
2. Posterior pituitary Growth Oversecretion stimulates abnormal
Hormone(GH) growth
3. Thyroid gland Thyroxine Lack of iodine in diet results in goitre
4. Corpus Luteum Testosterone Stimulates spermatogenesis
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Which one of the following pairs of hormones are the examples of those that can easily
pass through the cell membrane of the target cell and bind to a receptor inside it (mostly
in the nucleus)?
1. Insulin and glucagon
2. Thyroxin and insulin
3. Somatostatin and oxytocin
4. Cortisol and testosterone