Differentiate between breathing and respiration.

Breathing and respiration are related processes but differ in their nature and function.

Breathing is the physical process of inhaling oxygen and exhaling carbon dioxide through the lungs. It involves the movement of air in and out of the respiratory organs and does not release energy.

Respiration, on the other hand, is a biochemical process that occurs inside cells. It involves the breakdown of glucose using oxygen to release energy, along with carbon dioxide and water as by-products.

Breathing is a mechanical process and occurs in organs like the lungs, whereas respiration is a cellular process that takes place in all living cells, mainly in the mitochondria.

Thus, breathing supplies oxygen for respiration, while respiration releases energy needed for life activities.