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Chemical Coordination and Integration · Question 66

AIPMT 2004MCQEasy📈 Topic in 25% papers+4−1
1

Which one of the following hormones is modified amino acid?

  1. Epinephrine
  2. Progesterone
  3. Prostaglandin
  4. Estrogen

Answer

(1) Epinephrine

Solution

As per NCERT, on the basis of their chemical nature hormones are divided into (i) peptide, polypeptide, protein hormones, (ii) steroids, (iii) iodothyronines and (iv) amino-acid derivatives (e.g., epinephrine).

⇒ Epinephrine (adrenaline) is a catecholamine formed from the amino acid tyrosine.

∵ Progesterone and estrogen are steroids, and prostaglandins are derived from fatty acid (arachidonic acid).

∴ Epinephrine is a modified amino acid.

Answer: (1)

AIPMT 2004

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2

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
3

Chemically hormones are

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

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
5

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
6

Acromegaly is caused by

  1. excess of STH
  2. excess of thyroxine
  3. deficiency of thyroxine
  4. excess of adrenaline
AIPMT 2002
7

Adrenaline directly affects

  1. S.A. node
  2. -cells of Langerhans
  3. dorsal root of spinal nerve
  4. epithelial cells of stomach
AIPMT 2002
8

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
9

Melatonin is secreted by

  1. pineal body
  2. skin
  3. pituitary gland
  4. thyroid
AIPMT 2000
10

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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