The proper sequence for transport of mitochondrial matrix proteins would be:
A) TOM; TIM22
B) TOM; TIM23
C) SAM; TOM; TIM22
D) TOM; SAM; TIM22
E) SAM; TOM; TIM23

Question

Quizplus · Accepted Answer

The proper sequence for transport of mitochondrial matrix proteins is via the TOM (translocase of the outer mitochondrial membrane) complex followed by the TIM23 (translocase of the inner mitochondrial membrane) complex. This is because the TOM complex recognizes and imports proteins destined for the mitochondria, while the TIM23 complex translocates the proteins across the inner membrane and into the matrix. Option B is the only choice that correctly lists the TOM and TIM23 complexes in the proper sequence.

The Proper Sequence for Transport of Mitochondrial Matrix Proteins Would