AP BIOLOGY

Detailed explanation-1: -The process of breakdown of food in the cell with the release of energy is called cellular respiration. Cellular respiration takes place in the cells of all organisms. In the cell, the food (glucose) is broken down into carbon dioxide and water using oxygen.

Detailed explanation-2: -cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.

Detailed explanation-3: -Respiration in animals such as humans occurs with the help of the lungs. The animals take oxygen from the air by using their lungs that send the usable oxygen to the cells of the animals to break down the taken food to obtain the energy.

Detailed explanation-4: -The process of utilisation of oxygen and nutrients to produce energy in cells is called cellular respiration.