Oxygen is very important for aerobic respiration, but oxygen never participates as a reactant in any reaction. What is the role of oxygen in cellular respiration?

Question

Oxygen is very important for aerobic respiration, but oxygen never participates as a reactant in any reaction. What is the role of oxygen in cellular respiration? (A) It is terminal electron acceptor for aerobic respiration. (B) It is a nucleotide source for ATP synthesis (C) It functions as an electron carrier (D) It is the final electron acceptor for anaerobic respiration

Tardigrade Admin · Accepted Answer

In aerobic respiration oxidation of glucose releases hydrogen which is carried by NAD+ or FAD+, this hydrogen is ultimately accepted by oxygen forming water. Oxygen functions as terminal electron acceptor in aerobic respiration.

Q. Oxygen is very important for aerobic respiration, but oxygen never participates as a reactant in any reaction. What is the role of oxygen in cellular respiration?

It is terminal electron acceptor for aerobic respiration.

It is a nucleotide source for ATP synthesis

It functions as an electron carrier

It is the final electron acceptor for anaerobic respiration

In aerobic respiration oxidation of glucose releases hydrogen which is carried by NAD+ or FAD+, this hydrogen is ultimately accepted by oxygen forming water. Oxygen functions as terminal electron acceptor in aerobic respiration.