AP BIOLOGY

Detailed explanation-1: -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. When breakdown of glucose occurs with the use of oxygen it is called aerobic respiration.

Detailed explanation-2: -Respiration is the process that all living things go through to create the energy they need to live. This happens in the cells so it is also called cellular respiration. It usually involves exchanging two gases-oxygen and carbon dioxide. The cells take in oxygen and release carbon dioxide.

Detailed explanation-3: -Cellular respiration takes place in the cells of animals, plants, and fungi, and also in algae and other protists.

Detailed explanation-4: -Almost all living things need oxygen. They use this oxygen during the process of creating energy in living cells. Just as water moves from the sky to the earth and back in the hydrologic cycle, oxygen is also cycled through the environment.

Detailed explanation-5: -Respiration is important because it produces energy that is necessary for the functioning of the body. It provides oxygen to the cells and expels toxic carbon dioxide. When oxygen reaches the cells, this oxygen breakdown glucose which is present in digested food, and releases energy.