Cellular Respiration

What is Cellular Respiration?

Cellular respiration is the enzyme-controlled breakdown of nutrient molecules, principally glucose, inside living cells, releasing energy that the cell transfers to processes such as muscle contraction, protein synthesis, cell division, active transport, nerve impulse conduction and the maintenance of body temperature. It occurs in the cytoplasm and mitochondria, continues day and night in plants as well as animals, and does not require the organism to be moving.

This definition is part of the Respiration chapter in Cambridge O Level Biology.

Concepts related to Cellular Respiration

• mitochondria
• glucose
• Active Transport