Question

Match List-I and List-II with respect to proteins and their functions and select the correct option.

List-I		List-II
1.	Collagen	p.	Fights infectious agents
2.	Trypsin	q.	Hormone
3.	Insulin	r.	Enzyme
4.	Antibody	s.	Intercellular ground substance

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

Answer 1

The Correct Option is D

Step 1: Understand the Proteins and Their Functions

• Collagen: A structural protein that forms part of the extracellular matrix and connective tissues. It is involved in providing intercellular ground substance.
• Trypsin: An enzyme that aids in the breakdown of proteins in the digestive system.
• Insulin: A hormone that regulates glucose levels in the blood.
• Antibody: Proteins that fight infectious agents by recognizing and neutralizing pathogens like bacteria and viruses.

Step 2: Match the Proteins with Their Functions

• Collagen → Intercellular ground substance (s)
• Trypsin → Enzyme (r)
• Insulin → Hormone (q)
• Antibody → Fights infectious agents (p)

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

Answer 2

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

Let's match the proteins from List-I with their respective functions from List-II:

• 1. Collagen – Collagen is a structural protein found in connective tissues, and it provides strength and elasticity to tissues. It is part of the intercellular ground substance. Therefore, the match is 1-s.
• 2. Trypsin – Trypsin is a digestive enzyme that helps break down proteins in the small intestine. Therefore, the match is 2-r.
• 3. Insulin – Insulin is a hormone produced by the pancreas that helps regulate blood sugar levels. Therefore, the match is 3-q.
• 4. Antibody – Antibodies are proteins produced by the immune system to fight infectious agents like bacteria, viruses, and other pathogens. Therefore, the match is 4-p.

Thus, the correct matching is 1-s, 2-r, 3-q, 4-p.