NEETBotanyCell - The Unit of Life
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Mesosomes in bacteria perform a function analogous to mitochondria in eukaryotes. Reason (R): Mesosomes are formed by the extensions of the plasma membrane and help in respiration by increasing the enzymatic content. In the light of the above statements, choose the correct answer from the options g
Options
- ABoth (A) and (R) are correct but (R) is not the correct explanation of (A)
- BBoth (A) and (R) are correct and (R) is the correct explanation of (A)
- C(A) is correct but (R) is not correct
- D(A) is not correct but (R) is correct
Correct answer
B. Both (A) and (R) are correct and (R) is the correct explanation of (A)
Step-by-step solution
Assertion (A) is correct because mesosomes act as the site of respiration in prokaryotic cells, which is the primary function of mitochondria in eukaryotic cells, making them functionally analogous. Reason (R) is correct as mesosomes are indeed formed by the extension of the plasma membrane into the cell. They increase the surface area and enzymatic content, which facilitates cellular respiration. Since the presence of respiratory enzymes and the role in respiration directly explain why mesosomes are functionally a