the body uses atp for energy production during respiration.
the body uses atp for energy production during respiration.
which carbohydrate does the body use for energy production during respiration?
atp
the most important carbohydrate is glucose, a simple sugar (monosaccharide) that is metabolized by nearly all known organisms. glucose and other carbohydrates are part of a wide variety of metabolic pathways across species: plants synthesize carbohydrates from carbon dioxide and water by photosynthesis storing the absorbed energy internally, often in the form of starch or lipids. plant components are consumed by animals and fungi, and used as fuel for cellular respiration. oxidation of one gram of carbohydrate yields approximately 16 kj (4 kcal) of energy, while the oxidation of one gram of lipids yields about 38 kj (9 kcal). the human body stores between 300 and 500 g of carbohydrates depending on body weight, with the skeletal muscle contributing to a large portion of the storage. energy obtained from metabolism (e.g., oxidation of glucose) is usually stored temporarily within cells in the form of atp. organisms capable of anaerobic and aerobic respiration metabolize glucose and oxygen (aerobic) to release energy, with carbon dioxide and water as byproducts.
carbohydrate
carbon dioxide is converted into sugars in a process called carbon fixation; photosynthesis captures energy from sunlight to convert carbon dioxide into carbohydrate. carbon fixation is an endothermic redox reaction. in general outline, photosynthesis is the opposite of cellular respiration: while photosynthesis is a process of reduction of carbon dioxide to carbohydrate, cellular respiration is the oxidation of carbohydrate or other nutrients to carbon dioxide. nutrients used in cellular respiration include carbohydrates, amino acids and fatty acids. these nutrients are oxidized to produce carbon dioxide and water, and to release chemical energy to drive the organism's metabolism. photosynthesis and cellular respiration are distinct processes, as they take place through different sequences of chemical reactions and in different cellular compartments.
photosynthesis