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Chemical Coordination and Integration · Question 67

AIPMT 2004MCQEasy📈 Topic in 12% papers+4−1
1

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

Answer

(1) Luteinizing hormone – Failure of ovulation

Solution

As per NCERT, LH surge in the middle of the menstrual cycle induces rupture of Graafian follicle and thereby ovulation.

⇒ Deficiency of LH ⇒ no LH surge ⇒ failure of ovulation. So pair (1) is correct.

∵ Insulin deficiency causes diabetes mellitus; diabetes insipidus is due to deficiency of ADH (vasopressin).

∵ Thyroxine deficiency causes goitre, cretinism and myxoedema; tetany is due to deficiency of parathyroid hormone (fall in blood Ca2+).

∴ Only 'Luteinizing hormone – Failure of ovulation' is correctly matched.

Answer: (1)

AIPMT 2004

Keep practising — Chemical Coordination and Integration

2

Chemically hormones are

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

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
4

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

  1. Relaxin – Gigantism
  2. Prolactin – Cretinism
  3. Parathyroid hormone – Tetany
  4. Insulin – Diabetes insipidus
AIPMT 2003
5

Acromegaly is caused by

  1. excess of STH
  2. excess of thyroxine
  3. deficiency of thyroxine
  4. excess of adrenaline
AIPMT 2002
6

Adrenaline directly affects

  1. S.A. node
  2. -cells of Langerhans
  3. dorsal root of spinal nerve
  4. epithelial cells of stomach
AIPMT 2002
7

When both ovaries are removed from rat then which hormone is decreased in blood?

  1. Oxytocin
  2. Prolactin
  3. Estrogen
  4. Gonadotropin releasing factor
AIPMT 2002
8

Melatonin is secreted by

  1. pineal body
  2. skin
  3. pituitary gland
  4. thyroid
AIPMT 2000
9

MSH is secreted by

  1. anterior lobe of pituitary
  2. middle lobe of pituitary
  3. posterior lobe of pituitary
  4. endostyle
AIPMT 2000

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