Question

In mammals, mature red blood cells do not have mitochondria. Instead of using oxygen to help produce ATP, they use a form of anaerobic respiration known as lactic acid fermentation to form ATP.
Based on the information just given, what is the role of the mitochondria in cells that do contain mitochondria?

A: Use lactic acid to make ATP
B: Use oxygen to make ATP
C: Use ATP to make oxygen

Answer 1

B: Use oxygen to make ATP

It's a process in the mitochondria known as "oxidative phosphorylation" or "aerobic respiration."
**Note: "aerobic" and "oxidative" mean "uses oxygen."