DENDROLOGY

Detailed explanation-1: -Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen). During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts.

Detailed explanation-2: -Aerobic respiration uses the oxygen gathered during the process of anatomical respiration (or breathing) to facilitate ATP synthesis. In this role, oxygen is an electron acceptor within the electron transport chain which synthesizes ATP from nutrients.

Detailed explanation-3: -The Presence of Oxygen There are two types of cellular respiration (see Cellular Respiration concept): aerobic and anaerobic. One occurs in the presence of oxygen (aerobic), and one occurs in the absence of oxygen (anaerobic). Both begin with glycolysis-the splitting of glucose.