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Which of the following statements regarding mitochondria is incorrect?

  1. A
    Outer membrane is permeable to monomers of carbohydrates, fats and proteins.
  2. B
    Enzymes of electron transport are embedded in outer membrane.
  3. C
    Inner membrane is convoluted with infoldings.
  4. D
    Mitochondrial matrix contains single circular DNA molecule and ribosomes.

Solution & Step-by-step Explanation

Statement B is incorrect. The enzymes of the Electron Transport Chain (ETC) and ATP synthase are embedded in the inner mitochondrial membrane, specifically in the cristae. The outer membrane is smooth and contains porins.

Practice this question

Try it yourself before checking the explanation above.

Which of the following statements regarding mitochondria is incorrect?
A
Outer membrane is permeable to monomers of carbohydrates, fats and proteins.
B
Enzymes of electron transport are embedded in outer membrane.
C
Inner membrane is convoluted with infoldings.
D
Mitochondrial matrix contains single circular DNA molecule and ribosomes.

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