Question

What is cellular respiration?

a) A process that breaks down glucose without oxygen
b) The release of energy by breaking down glucose in the presence of oxygen
c) The production of glucose in the absence of oxygen
d) The breakdown of oxygen in the presence of glucose

Answer 1

Cellular respiration is a three-step process by which cells break down glucose molecules, release energy, and form molecules of ATP. Glucose and oxygen react to form carbon dioxide and water.

Step-by-step explanation:

Cellular respiration is a three-step aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP. This process involves Glycolysis, Transformation of Pyruvate, Krebs Cycle, and Oxidative phosphorylation. Overall, in this process, glucose and oxygen react to form carbon dioxide and water.