Question

Assertion (A) Smaller cells are usually metabolically active cells.
Reason (R) Smaller cells have higher nucleocytoplasmic ratio and higher surface volume ratio.

• A. If both A and R are true and R is the correct explanation of A
• B. If both A and R are true, but R is not the correct explanation of A
• C. If A is true, but R is false
• D. If A is false, but R is true

Answer 1

Answer: (A)

Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Metabolically active cells are usually smaller as such cells have a higher nucleocytoplasmic ratio and higher surface volume ratio.