NEET 2006 Biology question

Which of the following statements regarding mitochondrial membrane is not correct ?

(1)The outer membrane is permeable to all kinds of molecules
(2)The enzymes of the electron transfer chain are embedded in the outer membraneCorrect
(3)The inner membrane is highly convoluted forming a series of infoldings
(4)The outer membrane resembles a sieve

Answer: (2)

Solution

The enzymes of the electron transport chain and ATP synthase (F1 particles) are located in the inner mitochondrial membrane (on its cristae), not in the outer membrane. So statement (2) is incorrect and is the answer. The outer membrane is porous (contains porins) and

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Question ID VK-089668