NEET2026BiologyChapterActual
Read the following statements regarding cell organelles: A. The inner membrane of mitochondria forms infoldings called cristae which increase the surface area. B. Vacuoles are bound by a double membrane called tonoplast. C. Mitochondria divide by fission and contain 70S ribosomes. D. Lysosomal enzymes are optimally active at an alkaline pH. E. The Golgi apparatus is the important site of formation of glycoproteins an
Options
- AA, B and C only
- BA, C and E only
- CB, C and D only
- DC, D and E only
Correct answer
B. A, C and E only
Step-by-step solution
Statement A is correct. The inner membrane of mitochondria forms a number of infoldings called cristae towards the matrix, which increase the surface area for enzyme action. Statement B is incorrect. The vacuole is bound by a single membrane called the tonoplast, not a double membrane. Statement C is correct. Mitochondria divide by fission and their matrix possesses a single circular DNA molecule, a few RNA molecules, and 70S ribosomes. Statement D is incorrect. Lysosomal enzymes (hydrolases) are optimally active a