Cellular respiration
A)is the reverse of the process of photosynthesis.
B)involves the physical exchange of gases.
C)is a mechanism of tapping the energy found in the bonds between atoms in organic compounds.
D)can occur only if there is a supply of glucose available because no other compound can be the energy source for cellular respiration.
E)occurs only in animal cells.

Question

Quizplus · Accepted Answer

Cellular respiration is the process by which cells break down organic compounds such as glucose to release stored energy. This energy is stored in the form of ATP (adenosine triphosphate), which is used by cells as a source of energy. Cellular respiration is not the reverse process of photosynthesis (Option A), which is the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen. Cellular respiration also does not involve the physical exchange of gases (Option B), as gases such as oxygen and carbon dioxide are transported into and out of cells via diffusion. Although glucose is a common energy source for cellular respiration, other organic compounds can also be used (Option D). Finally, cellular respiration occurs in all living cells, including plant and animal cells (Option E).

Cellular Respiration