During cellular respiration, glucose breaks down into carbon dioxide and water. This process releases a store of energy, or ATP, that cells can use for their needs.
Cellular respiration is a process by which glucose, or sugar, oxidizes intocarbon dioxide and water, releasing energy in the form of adenosine triphosphate (ATP). The process occurs partially in the cytoplasm, which is the material within the living cell, and partially in the mitochondria, an organelle found in most cells.
Cellular respiration starts in the cytoplasm with one glucose molecule splitting into two molecules of pyruvic acid, which is an organic acid that occurs during many metabolic processes. The pyruvic acid shuttles into the mitochondria where it is converted into acetyl coenzyme A (acetyl CoA), an important biochemical molecule that can be broken down further.
During the Citric Acid Cycle, the presence of oxygen strips the hydrogen molecules off the acetyl CoA two at a time until there are none left. All that remains of the glucose is carbon dioxide, which is a waste product, and water. The Citric Acid Cycle produces a lot of nicotinamide adenine dinucleotide (NADH), which carries electrons from the hydrogen molecules down an electron transport chain, resulting in the production of ATP.Learn More
Cellular respiration is directly related to breathing, as breathing provides the necessary oxygen molecules for the process of cellular respiration to take place; cellular respiration is a process by which cells acquire energy. The oxygen provided by breathing is used as a final hydrogen acceptor for the process, explains Antranik.org.Full Answer >
Georgia State University explains that the metabolic pathway that is common to both cellular respiration and fermentation is anaerobic respiration. Anaerobic respiration takes place when there is no oxygen present in the cells.Full Answer >
The mitochondria of the eukaryotic cells are the sites of cellular respiration and where most of the steps take place. Cellular respiration allows for the release of energy stored in chemical bonds of glucose (obtained from food) to form adenosine triphosphate, which is the energy currency of the cell.Full Answer >
Glucose and oxygen are the reactants of cellular respiration. In the presence of oxygen, the chemical bonds in glucose break down, creating a form of energy known as ATP that is used by cells to perform their daily functions. Water and carbon dioxide are also formed when glucose and oxygen react, but these products are expelled from the body as waste.Full Answer >