The folds of the inner mitochondrial membrane
A) increase the volume of the mitochondrial matrix.
B) create membrane-enclosed compartments within the mitochondrion.
C) increase the surface area for the exchange of substances across the membrane.
D) anchor the mitochondrial DNA.
E) have no known purpose.

Question

Quizplus · Accepted Answer

The folds of the inner mitochondrial membrane, known as cristae, increase the surface area of the membrane, which allows for greater exchange of substances such as oxygen and ATP molecules. This increases the efficiency of cellular respiration.

The Folds of the Inner Mitochondrial Membrane