Question

Explain why oxygen is needed for the production of ATP on the cristae of the mitochondrion. (4)

a) Oxygen is not needed for ATP production; ATP can be produced without oxygen.
b) Oxygen is required to transport electrons in the electron transport chain.
c) Oxygen is used to produce glucose in the mitochondrion.
d) Oxygen enhances the color of the cristae, making ATP production more efficient.

Answer 1

Oxygen is needed to make ATP, the usable form of cellular energy. It acts as the final electron acceptor in the electron transport chain during cellular respiration. Without oxygen, ATP production is less efficient.

Step-by-step explanation:

Oxygen is needed by each cell in the body to make ATP, the usable form of cellular energy. Oxygen is required in the final stage of cellular respiration to convert glucose into ATP. It acts as the final electron acceptor in the electron transport chain, allowing the production of ATP. Without oxygen, ATP production is much less efficient and fewer ATP molecules are produced.