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Q: Which of the following statements about mitochondria is correct?
  • A. Mitochondria are not bound by any membrane.
  • B. Mitochondria are only present in bacteria.
  • C. Mitochondria without an outer membrane are called mitoplasts
  • D. Mitochondria are present in all living cells
Correct Answer: Option C - Statement (c) is correct. Mitoplasts are a specialized form of mitochondria without outer membrane. Inner membrane and matrix are intact. Mitochondria are bound by a double membrane. Mitochondria are found in eukaryotic cells and not just in bacteria (prokaryotic cell). Mitochondria are not present in all living cells, as mature red blood cells in humans lack mitochondria.
C. Statement (c) is correct. Mitoplasts are a specialized form of mitochondria without outer membrane. Inner membrane and matrix are intact. Mitochondria are bound by a double membrane. Mitochondria are found in eukaryotic cells and not just in bacteria (prokaryotic cell). Mitochondria are not present in all living cells, as mature red blood cells in humans lack mitochondria.

Explanations:

Statement (c) is correct. Mitoplasts are a specialized form of mitochondria without outer membrane. Inner membrane and matrix are intact. Mitochondria are bound by a double membrane. Mitochondria are found in eukaryotic cells and not just in bacteria (prokaryotic cell). Mitochondria are not present in all living cells, as mature red blood cells in humans lack mitochondria.