Cellular Respiration Meaning In Biology

Cellular respiration is a process that all living things use to convert glucose into energy.

Cellular respiration meaning in biology. Cellular respiration stores chemical energy in the form of phosphorylated nucleotides primarily ATP by means of oxidative reactions and makes it available to other reactions. Autotrophs like plants produce glucose during photosynthesis. Both aerobic and anaerobic respiration involve chemical reactions which take place in the cell to produce energy which is needed for active processes.

Cellular respiration is the process through which cells convert sugars into energy. During cellular respiration glucose in the presence of oxygen is converted into carbon dioxide and water. Some organisms such as plants can trap the energy in sunlight through photosynthesis see Chapter 5 and store it in the chemical bonds of carbohydrate molecules.

In this process glucose is broken down in the presence of molecular oxygen into six molecules of carbon dioxide and much of the energy released is preserved by turning ADP and free phosphate into ATP. In the cells of any non-photosynthetic eukaryote such as a person bread mold or a paramecium glucose and oxygen are going to come from outside the cell. 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.

Cellular respiration refers to both aerobic and anaerobic respiration but is often synonymous with aerobic respiration. To create ATP and other forms of energy to power cellular reactions cells require fuel and an electron acceptor which drives the chemical process of turning energy into a useable form. Glycolysis consists of an energy-requiring phase followed by an energy-releasing phase.

Cellular respiration is a set of metabolic reactions occurring inside the cells to convert biochemical energy obtained from the food into a chemical compound called adenosine triphosphate ATP. The respiration occurring at the cellular level wherein the cells produce energy by combining oxygen with food molecules is called cellular respiration. Cellular respiration is the set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate and then release waste products.

The cellular context In the diagram at left 1 represents the cell exterior. ATP for use in energy-requiring activities of the cell. Introduction to Cellular Respiration.