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Pathway in Biological Definition

Apoptosis

... of TNF to TNF-R1 has been shown to fire-off the pathway that leads to activating the caspases [9] . ... on biochemical execution). The apoptotic pathway was found to be dramatically restored in H460 ... transformation. This apoptosis-dependent pathway for T cell activation is not present during ...

Citric acid cycle

... organisms , the citric acid cycle is a metabolic pathway that forms part of the break down of ... who proposed the key elements of this pathway in 1937 and was awarded the Nobel Prize in ... citric acid cycle is called an amphibolic pathway because it participates in both catabolism and ...

Enzyme

... identical, independent of the specific individual pathway taken from beginning point to end point. This is ... by the possibility of a cycle of moving down a pathway releasing less net energy and back up a different pathway with higher net energy, or vice versa. An enzyme ...

Glycolysis

... Glycolysis is the initial metabolic pathway of carbohydrate catabolism . The most common ... pathways, such as the Entner-Doudoroff pathway . However, glycolysis will be used here as a synonym for the Embden-Meyerhof pathway . Glycolysis is the most universal process by ...

Citric acid cycle

... organisms , the citric acid cycle is a metabolic pathway that forms part of the break down of ... who proposed the key elements of this pathway in 1937 and was awarded the Nobel Prize in ... citric acid cycle is called an amphibolic pathway because it participates in both catabolism and ...

Long-term potentiation

... LH, Lisman JE (2000) "Inhibition of the cAMP pathway decreases early long-term potentiation at CA1 ... LH, Lisman JE (2000) "Inhibition of the cAMP pathway decreases early long-term potentiation at CA1 ... in the Schaffer collateral-commissural pathway of the rat hippocampus." J Physiol. 1983 ...

Metabolism

... does not require oxygen . Embden-Meyerhof pathway , the common glycolysis pathway. Entner-Doudoroff pathway , an alternative glycolysis pathway in few bacteria . Pentose ...

C4 carbon fixation

... C4 (disambiguation) C 4 carbon fixation is a common metabolic pathway found in land plants ( C4 plants ). They are competitively superior to plants possessing the more common C3 pathway under the conditions of drought, high temperatures and nitrogen ....

Pentose phosphate pathway

... The penthose phosphate pathway (also known as the Hexose Monophosphate Shunt) is a process that serves ... and the second is the non-oxidative synthesis of 5 carbon sugars. The pathway is one of the three main ways the body creates reducing molecules to ...

Coenzyme A

... , then attached to coenzyme A while NAD + is subsequently reduced to NADH and H + . See also Citric acid cycle HMG-CoA reductase pathway ...

Antibody

... prime for phagocytosis by macrophages and other cells, block viral receptors and stimulate other immune responses such as the complement pathway . Antibodies that recognize viruses can block these directly by their sheer size. The virus will be unable to dock to a cell and infect it, ...

Crassulacean acid metabolism

... Crassulacean acid metabolism ( CAM ) is a carbon fixation pathway in some photosynthetic plants . CAM is usually found in plants living under arid conditions, including those found in the desert (for example, ...

Crassulacean acid metabolism

... Crassulacean acid metabolism ( CAM ) is a carbon fixation pathway in some photosynthetic plants . CAM is usually found in plants living under arid conditions, including those found in the desert (for example, ...

Carbohydrate

... oxidative phosphorylation See also Biochemistry Macromolecules Glycolysis Gluconeogenesis Pentose phosphate pathway External links IUPAC-IUBMB Joint Commission on Biochemical Nomenclature (JCBN): Carbohydrate Nomenclature Carbohydrates detailed ...

Cellular respiration

... respiration (Fermentation) 3 See also 4 External links Glycolysis Main article: Glycolysis Glycolysis is a metabolic pathway that is found in all living organisms and does not require oxygen . The process converts one molecule of glucose into two molecules of pyruvate ...

Cell metabolism

... into new proteins via the use of ribonucleic acids ( RNA ) and ribosomes . See also Biochemistry Metabolism Metabolic pathway ...

Immune system

... system ). Some self/non-self discrimination is effected by hard-wired mechanisms that recognize features displayed only by pathogens. The MBL pathway of the complement system , for instance, recognizes mannose sugars, which appear only in the polysaccharide coats of bacterium. The most interesting ...

Light-dependent reaction

... a proton-motive force, pumping H + ions across the membrane; this produces a concentration gradient which can be used to power ATP synthase . This pathway is known as cyclic photophosphorylation, and it produces neither O 2 nor NADPH. Noncyclic photophosphorylation The other pathway, noncyclic ...

Oxidative phosphorylation

... Oxidative phosphorylation is a biochemical process in cells . It is the final metabolic pathway of cellular respiration , after glycolysis and the citric acid cycle . The process takes place at a biological membrane . In prokaryotes ...

Light-dependent reaction

... a proton-motive force, pumping H + ions across the membrane; this produces a concentration gradient which can be used to power ATP synthase . This pathway is known as cyclic photophosphorylation, and it produces neither O 2 nor NADPH. Noncyclic photophosphorylation The other pathway, noncyclic ...

Photorespiration

... Photorespiration is an alternate pathway for rubisco , the main enzyme of photosynthesis (specifically, the Calvin cycle ). Although rubisco favors carbon , it can also use oxygen , ...

Prion

... of PrP. In this view, the presence of PrP SC somehow alters the way in which PrP is synthesized, shunting it down an alternative metabolic pathway that results in the formation of more PrP SC instead of the normal PrP C form. The degenerative diseases caused by prions are known ...

Purine

... ). Both adenine and guanine are derived from the nucleotide inosine monophosphate, which is synthesized on a pre-existing ribose through a complex pathway using atoms from the amino acids glycine , glutamine , and aspartic acid , as well as formate ions transferred from the coenzyme ...
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