Question

Cellular respiration takes place in _______, which are often called the cell's "powerhouses" because they make most of a cell's ATP?

1) chloroplasts
2) mitochondria
3) nucleus
4) ribosomes

Answer 1

Mitochondria are the powerhouses of the cell as they produce adenosine triphosphate (ATP), the cell's main energy source, through cellular respiration.

Step-by-step explanation:

Mitochondria (singular = mitochondrion) are often called the "powerhouses" or "energy factories" of a cell because they are responsible for making adenosine triphosphate (ATP), the cell's main energy-carrying molecule. ATP represents the short-term stored energy of the cell. Cellular respiration is the process of making ATP using the chemical energy found in glucose and other nutrients. In mitochondria, this process uses oxygen and produces carbon dioxide as a waste product. In fact, the carbon dioxide that you exhale with every breath comes from the cellular reactions that produce carbon dioxide as a byproduct.