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Chemical Coordination and Integration · Question 59

AIPMT 2007MCQEasy📈 Topic in 25% papers+4−1
1

A person is having problems with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?

  1. Parotid
  2. Pancreas
  3. Thyroid
  4. Parathyroid

Answer

(4) Parathyroid

Solution

As per NCERT, the parathyroid glands secrete parathyroid hormone (PTH), which increases blood Ca2+ level.

PTH stimulates bone resorption, reabsorption of Ca2+ by renal tubules and absorption of Ca2+ from digested food; it also increases excretion of phosphate.

∴ A problem in calcium and phosphorus metabolism points to the parathyroid gland.

Answer: (4)

AIPMT 2007

Keep practising — Chemical Coordination and Integration

2

Compared to a bull a bullock is docile because of:

  1. Lower levels of adrenalin/noradrenalin in its blood
  2. Lower levels of blood testosterone
  3. Higher levels of thyroxin
  4. Higher levels of cortisone
Out of syllabusAIPMT 2007
3

Which hormone causes dilation of blood vessels, increased oxygen consumption and glucogenesis?

  1. Glucagon
  2. ACTH
  3. Insulin
  4. Adrenaline
AIPMT 2006
4

Which of the following is an accumulation and release center of neurohormones?

  1. Anterior pituitary lobe
  2. Posterior pituitary lobe
  3. Intermediate lobe of the pituitary
  4. Hypothalamus
AIPMT 2006
5

A steroid hormone which regulates glucose metabolism is

  1. cortisone
  2. cortisol
  3. corticosterone
  4. 11-deoxycorticosterone.
AIPMT 2006
6

Which one of the following is not a secondary messenger in hormone action?

  1. cAMP
  2. cGMP
  3. Calcium
  4. Sodium
AIPMT 2006
7

Which one of the following statements is correct?

  1. Endocrine glands regulate neural activity, but not vice versa.
  2. Neurons regulate endocrine activity, but not vice versa.
  3. Endocrine glands regulate neural activity, and nervous system regulates endocrine glands.
  4. Neither hormones control neural activity nor the neurons control endocrine activity.
AIPMT 2006
8

Which one of the following hormones is modified amino acid?

  1. Epinephrine
  2. Progesterone
  3. Prostaglandin
  4. Estrogen
AIPMT 2004
9

Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?

  1. Luteinizing hormone – Failure of ovulation
  2. Insulin – Diabetes insipidus
  3. Thyroxine – Tetany
  4. Parathyroid – Diabetes mellitus
AIPMT 2004
10

Chemically hormones are

  1. biogenic amines only
  2. proteins, steroids and biogenic amines
  3. proteins only
  4. steroids only
AIPMT 2004
11

Duodenum, which has characteristic Brunner's glands, secretes two hormones called

  1. kinase, estrogen
  2. secretin, cholecystokinin
  3. prolactin, parathormone
  4. estradiol, progesterone.
Out of syllabusAIPMT 2004

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