Question

Match the hormones of Column I with its functions in Column II.

Column I		Column II
1.	Catecholamines	p.	Diurnal rhythm
2.	MSH	q.	Immune response
3.	Thymosins	r.	Pigmentation
4.	Melatonin	s.	Stress hormone

• A. 1-s, 2-r, 3-q, 4-p
• B. 1-r, 2-q, 3-s, 4-p
• C. 1-q, 2-s, 3-r, 4-p
• D. 1-p, 2-q, 3-r, 4-s

Answer 1

The Correct Option is A

Let's match the hormones in Column I with their respective functions in Column II:

Catecholamines: These hormones, such as adrenaline and noradrenaline, are released during stress and are commonly referred to as stress hormones.

• Correct match: 1 → s (Stress hormone).

MSH (Melanocyte-Stimulating Hormone): MSH is involved in the regulation of pigmentation of the skin.

• Correct match: 2 → r (Pigmentation).

Thymosins: These are hormones produced by the thymus gland and play a role in the immune response by promoting the development of T-cells.

• Correct match: 3 → q (Immune response).

Melatonin: This hormone is produced by the pineal gland and regulates the diurnal rhythm, helping control the sleep-wake cycle.

• Correct match: 4 → p (Diurnal rhythm).

Correct Matching:

1 → s (Stress hormone)

2 → r (Pigmentation)

3 → q (Immune response)

4 → p (Diurnal rhythm)

The correct answer is (A) : 1-s, 2-r, 3-q, 4-p.

Answer 2

Let's match each hormone in Column I with its primary function described in Column II: 

• 1. Catecholamines: This group includes hormones like adrenaline (epinephrine) and noradrenaline (norepinephrine), secreted by the adrenal medulla. They are released during acute stress situations and mediate the "fight-or-flight" response. Therefore, they are known as stress hormones (s). 
  So, 1 → s.
• 2. MSH (Melanocyte-Stimulating Hormone): Secreted mainly by the pars intermedia of the pituitary gland, MSH acts on melanocytes (pigment-producing cells) in the skin to stimulate the production and dispersion of melanin, thus affecting skin pigmentation (r). 
  So, 2 → r.
• 3. Thymosins: These are hormones produced by the thymus gland. They play a critical role in the development, differentiation, and maturation of T-lymphocytes, which are essential cells for cell-mediated immune response (q). 
  So, 3 → q.
• 4. Melatonin: Secreted by the pineal gland, melatonin helps regulate the body's 24-hour sleep-wake cycle and other biological rhythms synchronized with the day-night cycle, known as diurnal rhythm (p). 
  So, 4 → p.

The correct matching sequence is:

• 1 → s
• 2 → r
• 3 → q
• 4 → p

Comparing this to the options provided:

• 1-s, 2-r, 3-q, 4-p
• 1-r, 2-q, 3-s, 4-p
• 1-q, 2-s, 3-r, 4-p
• 1-p, 2-q, 3-r, 4-s

The correct option is 1-s, 2-r, 3-q, 4-p.