The folds of the inner mitochondrial membrane
A) increase the volume of the mitochondrial matrix.
B) decrease the surface-to-volume ratio of the mitochondrion.
C) create a large membrane surface for reactions within the mitochondrion.
D) increase the number of ribosomes within the membrane.
E) enclose the mitochondrial DNA in a double membrane.

Question

Quizplus · Accepted Answer

The folds of the inner mitochondrial membrane, called cristae, create a large membrane surface for reactions within the mitochondrion. This increases the efficiency of the electron transport chain and ATP synthesis, as there is more surface area for proteins involved in these processes to be embedded in the membrane.

The Folds of the Inner Mitochondrial Membrane