Question

Given below are two statements:
Statement I: Mitochondria and chloroplasts both double membranes bound organelles. 
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared chloroplast. I
In the light of the above statements, choose the mis appropriate answer from the options given below

• A. Both Statement I and Statement II are correct.
• B. Both Statement I and Statement II are incorrect
• C. Statement I is correct but Statement II is incorrect
• D. Statement I is incorrect but Statement II is correct

Answer 1

The Correct Option is C

In this problem, we need to analyze two statements about mitochondria and chloroplasts to determine their correctness.

Statement I: Mitochondria and chloroplasts are both double membrane-bound organelles.

Statement I is correct. Both mitochondria and chloroplasts have two membranes. In mitochondria, there is an outer membrane and an inner membrane that form the mitochondrial structure. Similarly, chloroplasts have an outer membrane and an inner thylakoid membrane.

Statement II: The inner membrane of mitochondria is relatively less permeable, as compared to chloroplasts.

Statement II is incorrect. The inner membrane of mitochondria is indeed highly selective and less permeable, which is critical for maintaining the proton gradient necessary for ATP production during cellular respiration. On the contrary, the inner membrane of chloroplasts, specifically the thylakoid membrane, is involved in photosynthesis and while it is less permeable in certain respects, it serves different functional constraints compared to mitochondria. Thus, directly comparing their permeability without considering specific contexts is not accurate.

Therefore, the correct answer is: Statement I is correct but Statement II is incorrect.

Answer 2

Evaluating Statements on Mitochondria and Chloroplasts:

• Statement I: Both mitochondria and chloroplasts are double-membrane bound organelles, characteristic of eukaryotic cells. Hence , it is Correct.
• Statement II: The inner membrane of the mitochondria is highly impermeable, whereas the inner membrane of the chloroplast is permeable to some molecules due to the presence of specific transporters. Hence , it is Incorrect.

Thus, the correct answer is (3) Statement I is correct but Statement II is incorrect.