Question

the inner membrane of mitochondria consists of many folds.
what is the purpose of this membrane?

○ house enzymes needed for digestion

○ decrease the surface area so substances cant diffuse in

○ increase the surface area to allow more space for atp synthesis

○ provide structural support for the mitochondria

Explanation:

1. Analyze Option 1: Enzymes for digestion are in lysosomes, not mitochondria. Eliminate.
2. Analyze Option 2: Folds (cristae) increase, not decrease, surface area. Eliminate.
3. Analyze Option 3: Mitochondrial inner membrane folds (cristae) increase surface area. More surface area allows more space for ATP - producing structures (like ATP synthase) and reactions (electron transport chain) for ATP synthesis. This matches.
4. Analyze Option 4: Structural support for mitochondria is not the role of inner membrane folds. Eliminate.

Answer:

C. increase the surface area to allow more space for ATP synthesis