Question

Which statement best describes why an organism would carry out aerobic respiration?

It needs to store sugars and is unable to process glucose.
It needs to create glucose to be used for energy later.
It needs to process carbon dioxide and does not have oxygen available.
It needs to generate energy and has oxygen available.

Answer 1

Aerobic respiration is carried out by an organism when it needs to generate energy and has oxygen available.

Step-by-step explanation:

Aerobic respiration is carried out by an organism when it needs to generate energy and has oxygen available. Oxygen is required for cellular respiration, which is the process that breaks down glucose and produces ATP, the energy currency of the cell. With oxygen, organisms can break down glucose all the way to carbon dioxide, releasing much more energy compared to anaerobic respiration. Therefore, when an organism has access to oxygen and needs to generate a significant amount of energy, it performs aerobic respiration.