Question

which process can be performed without oxygen?
oxidative phosphorylation
glycolysis
aerobic respiration

Explanation:

• Oxidative phosphorylation is part of aerobic respiration and requires oxygen as the final electron acceptor.
• Aerobic respiration, by definition, requires oxygen to fully break down glucose and produce ATP.
• Glycolysis is the initial step of cellular respiration (both aerobic and anaerobic) and occurs in the cytoplasm, not requiring oxygen. It breaks down glucose into pyruvate, producing a small amount of ATP.

Answer:

B. glycolysis