Cellular Respiration: The Key to Energy Production

What is the process that cells use to generate energy?

A. Photosynthesis

B. Cellular Respiration

C. Fermentation

D. Mitosis

Answer:

B. Cellular Respiration

Cellular respiration is the process by which cells generate energy by breaking down glucose and other organic molecules in the presence of oxygen. This process occurs in the mitochondria of cells and involves a series of complex biochemical reactions.

During cellular respiration, glucose is oxidized to produce ATP (adenosine triphosphate), the primary energy currency of cells. ATP is used to power various cellular processes, including muscle contractions, protein synthesis, and nerve impulses.

Cellular respiration is essential for the survival and function of all living organisms, as it provides the energy needed to carry out various physiological functions. Without cellular respiration, cells would not be able to produce enough ATP to sustain life.

In summary, cellular respiration is the key process through which cells generate energy to support their functions and activities. It is a fundamental component of metabolism and is essential for life as we know it.