Question

Match the cell junctions listed in Group A with their correct functions listed in Group B: 

• A. I–S; II–P; III–Q; IV–R
• B. I–Q; II–R; III–P; IV–S
• C. I–Q; II–R; III–S; IV–P
• D. I–P; II–Q; III–R; IV–S

Hint:

Remember: Adherens = Actin, Desmosomes = Intermediate filaments, Tight = Seal, Gap = Signal exchange.

Answer 1

The Correct Option is C

Step 1: Recall junction types and their functions.
- Adherens junctions: Connect actin filaments in neighboring cells — mechanical strength.
- Desmosomes: Connect intermediate filaments, providing tissue integrity.
- Tight junctions: Seal spaces between cells, forming barriers (e.g., intestinal epithelium).
- Gap junctions: Allow diffusion of ions and small molecules for cell communication.
Step 2: Match accordingly.
I–P, II–Q, III–R, IV–S.
Step 3: Conclusion.
Hence, the correct matching is (D).