Question

Energy from glucose can be extracted and converted to ATP only if:

A. The cells have mitochondria.
B. the cells have enzymes that can carry out oxidation-reduction reactions.
C. oxygen is the electron acceptor AND the cells have mitochondria.
D. the cells have membrane proteins that can pump hydrogen ions.
E. oxygen is the electron acceptor.

Answer 1

The correct answer is C. Energy from glucose can be extracted and converted to ATP only if oxygen is the electron acceptor and the cells have mitochondria because these conditions are requisite for oxidative phosphorylation in cellular respiration.

Step-by-step explanation:

Energy from glucose can be extracted and converted to ATP only if oxygen is the electron acceptor AND the cells have mitochondria.

This is because the process of oxidative phosphorylation, which generates most ATP during the cellular respiration of glucose, requires an electron transport system (ETS) embedded in the inner mitochondrial membrane of eukaryotic cells. Moreover, oxygen acts as the final electron acceptor in the ETS, enabling the synthesis of ATP. Therefore, the correct answer is C. oxygen is the electron acceptor AND the cells have mitochondria.

During cellular respiration, glucose, in the presence of oxygen, is converted into carbon dioxide, water, and ATP. The stages of cellular respiration include glycolysis in the cytoplasm, the Krebs cycle, and the electron transport chain within the mitochondria.