Question

Match the compounds of Column I with their functions in Column II.

Column I		Column II
1.	Trypsin	p.	Fights infectious agents
2.	GLUT - 4	q.	Is an intercellular ground substance
3.	Collagen	r.	Works as an enzyme
4.	Antibody	s.	Enables glucose transport into cells

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

Answer 1

The Correct Option is D

Let's match each compound from Column I with its correct function from Column II:

Trypsin: This is an enzyme involved in the digestion of proteins, breaking them down into smaller peptides.

• The correct match is: 1 → r (Works as an enzyme).

GLUT-4: This is a glucose transporter protein found in muscle and fat cells that facilitates glucose uptake into the cells.

• The correct match is: 2 → s (Enables glucose transport into cells).

Collagen: This is a structural protein found in connective tissues, serving as an intercellular ground substance and providing strength and support to tissues.

• The correct match is: 3 → q (Is an intercellular ground substance).

Antibody: These are proteins produced by the immune system that help fight off infectious agents like bacteria and viruses.

• The correct match is: 4 → p (Fights infectious agents).

Correct Matching:

1 → r (Works as an enzyme)

2 → s (Enables glucose transport into cells)

3 → q (Is an intercellular ground substance)

4 → p (Fights infectious agents)

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

Answer 2

Let's match each compound in Column I with its corresponding function in Column II: 

• 1. Trypsin: This is a proteolytic enzyme secreted by the pancreas (as inactive trypsinogen) and active in the small intestine. It digests proteins by breaking peptide bonds. Therefore, Trypsin works as an enzyme (r). 
  So, 1 → r.
• 2. GLUT-4: This stands for Glucose Transporter type 4. It is an insulin-regulated protein found primarily in adipose tissues and striated muscle (skeletal and cardiac). Its function is to facilitate the movement of glucose from the bloodstream into these cells. Therefore, GLUT-4 enables glucose transport into cells (s). 
  So, 2 → s.
• 3. Collagen: This is a major structural protein found in the extracellular matrix of various connective tissues in animals, including skin, tendons, ligaments, cartilage, and bone. It provides structural support and tensile strength. Therefore, Collagen is an intercellular ground substance (q) (or more accurately, a major component of it). 
  So, 3 → q.
• 4. Antibody: Also known as immunoglobulins, antibodies are proteins produced by plasma cells (differentiated B lymphocytes) as part of the adaptive immune response. They specifically bind to foreign substances (antigens), such as those on bacteria and viruses, helping to neutralize or eliminate them. Therefore, an Antibody fights infectious agents (p). 
  So, 4 → p.

The correct matching sequence is:

• 1 → r
• 2 → s
• 3 → q
• 4 → p

Comparing this to the options provided:

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

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