Biology — Introduction to Respiration and Energy Release + 8 more topics

You know that all living things need energy to survive and carry out essential processes like growth, movement, and maintaining body temperature. This energy comes from the food you eat, but it's not in a direct usable form. Cellular respiration is the process where cells break down organic molecules (like glucose) to release the chemical energy stored within them, converting it into a usable form called ATP (adenosine triphosphate). ATP is often called the "energy currency" of the cell because it's what cells directly use for almost all their activities.