AP BIOLOGY

Detailed explanation-1: -All organisms contain one or more cells, and cells need usable energy to carry out their functions. Because of this, all organisms (except certain types of bacteria and yeasts) perform cellular respiration.

Detailed explanation-2: -Instead of oxygen, anaerobic cells use substances such as sulfate, nitrate, sulfur, and fumarate to drive their cellular respiration. Many cells can perform either aerobic or anaerobic respiration, depending on whether oxygen is available.

Detailed explanation-3: -Bacteria perform two types of cellular respiration, aerobic and anaerobic. In aerobic cellular respiration there are three main steps, glycolysis and the citric acid cycle, which occur in the cytoplasm and the electron transport chain, which occurs in the plasma membrane.

Detailed explanation-4: -Cellular respiration takes place in the cells of animals, plants, and fungi, and also in algae and other protists.