Which of the following statements about transport of proteins into mitochondria

Question

Which of the following statements about transport of proteins into mitochondria is incorrect?

Which of the following statements about transport of proteins into mitochondria is incorrect?

1.The signal sequence on proteins that belong int these organelles is recognized by a receptor protein in the outer membrane of these organelles 2.Proteins that are transported into these organelles are unfolded as they are being transported. 3.After a protein moves throuhg the translocator in the outer membrane, the protein then must diffuse in the lumen in order to contact a protein translocator in the inner membrane. 4.The signal peptidase enzyme will remove the signal sequence as soon as the protein as been imported into these organelles

Explanation / Answer

The correct option is 3 , i.e. After a protein moves throughthe translocator in the outer membrane, the protein then must diffuse in the lumen in order to contact a protein translocator in the inner membrane.

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