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Chemical Coordination and Integration · Question 31

NEET 2016 (Phase 2)MCQEasy📈 Topic in 12% papers+4−1
1

The posterior pituitary gland is not a 'true' endocrine gland because

  1. it is provided with a duct
  2. it only stores and releases hormones
  3. it is under the regulation of hypothalamus
  4. it secretes enzymes.

Answer

(2) it only stores and releases hormones

Solution

As per NCERT, the neurohypophysis (pars nervosa), also known as posterior pituitary, stores and releases two hormones called oxytocin and vasopressin, which are actually synthesised by the hypothalamus and are transported axonally to the neurohypophysis.

∴ It does not synthesise any hormone of its own; it only stores and releases hormones.

Answer: (2)

NEET 2016 (Phase 2)

Keep practising — Chemical Coordination and Integration

2

Which hormones do stimulate the production of pancreatic juice and bicarbonate?

  1. Angiotensin and epinephrine
  2. Gastrin and insulin
  3. Cholecystokinin and secretin
  4. Insulin and glucagon
Out of syllabusNEET 2016 (Phase 2)
3

Which one of the following hormones is not involved in sugar metabolism?

  1. Insulin
  2. Glucagon
  3. Cortisone
  4. Aldosterone
AIPMT 2015
4

Which one of the following hormones though synthesised elsewhere, is stored and released by the master gland?

  1. Prolactin
  2. Melanocyte stimulating hormone
  3. Antidiuretic hormone
  4. Luteinising hormone
AIPMT 2015
5

A chemical signal that has both endocrine and neural roles is

  1. epinephrine
  2. cortisol
  3. melatonin
  4. calcitonin.
AIPMT 2015 (Cancelled)
6

Identify the hormone with its correct matching of source and function.

  1. Oxytocin – posterior pituitary, growth and maintenance of mammary glands.
  2. Melatonin – pineal gland, regulates the normal rhythm of sleep-wake cycle.
  3. Progesterone – corpus luteum, stimulation of growth and activities of female secondary sex organs.
  4. Atrial natriuretic factor – ventricular wall, increases the blood pressure.
AIPMT 2014
7

Fight-or-flight reactions cause activation of

  1. the parathyroid glands, leading to increased metabolic rate
  2. the kidney, leading to suppression of renin-angiotensin-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.
AIPMT 2014
8

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. cancer of the thyroid gland
  2. oversecretion of pars distalis
  3. deficiency of iodine in diet
  4. low secretion of growth hormone.
NEET 2013
9

Which of the following statements is correct in relation to the endocrine system?

  1. Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messenger are known as hormones.
  2. Releasing and inhibitory hormones are produced by the pituitary gland.
  3. Adenohypophysis is under direct neural regulation of the hypothalamus.
  4. Organs in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.
NEET 2013
10

Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency symptom.

  1. array|l|l|l| Endocrine & Hormone & Function/ \ gland & & Deficiency \ & & symptoms \ Thyroid & Thyroxine & Lack of iodine \ gland & & in diet results \ & & in goitre \ array
  2. array|l|l|l| Endocrine & Hormone & Function/ \ gland & & Deficiency \ & & symptoms \ Corpus & Testosterone & Stimulates \ luteum & & spermatogenesis \ array
  3. array|l|l|l| Endocrine & Hormone & Function/ \ gland & & Deficiency \ & & symptoms \ Anterior & Oxytocin & Stimulates uterine \ pituitary & & contraction during \ & & child birth \ array
  4. array|l|l|l| Endocrine & Hormone & Function/ \ gland & & Deficiency \ & & symptoms \ Posterior & Growth & Oversecretion \ pituitary & hormone & stimulates \ & (GH) & abnormal growth \ array
NEET 2013
11

Select the option which correctly matches the endocrine gland with its hormone and its function.

  1. array|l|l|l| Endocrine & Hormone & Function \ gland & & \ Placenta & Estrogen & Initiates secretion \ & & of the milk \ array
  2. array|l|l|l| Endocrine & Hormone & Function \ gland & & \ Corpus & Estrogen & Essential for \ luteum & & maintenance of \ & & endometrium \ array
  3. array|l|l|l| Endocrine & Hormone & Function \ gland & & \ Leydig's & Androgen & Initiates the \ cells & & production of \ & & sperms \ array
  4. array|l|l|l| Endocrine & Hormone & Function \ gland & & \ Ovary & FSH & Stimulates follicular \ & & development and \ & & the secretion of \ & & estrogens \ array
NEET 2013 (Karnataka)

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