If the mitochondrion is the result of endosymbiosis, which membrane of the mitochondrion represents the engulfing vesicle?
A) the outer mitochondrial membrane
B) the vacuole membrane
C) the nuclear membrane
D) the thylakoid membrane
E) the inner mitochondrial membrane

Question

Quizplus · Accepted Answer

The outer mitochondrial membrane represents the engulfing vesicle because it has the same lipid composition as the plasma membrane of the host cell that engulfed the ancestor of the mitochondrion. This supports the hypothesis that the mitochondrion originated from endosymbiosis of an aerobic prokaryote inside a larger eukaryotic host cell.

If the Mitochondrion Is the Result of Endosymbiosis, Which Membrane