| Antioxidant antioxidant is a molecule capable of slowing or preventing the oxidation of other molecules. Oxidation is a chemical reaction that transfers electrons from a substance to an oxidizing agent. Oxidation reactions can produce free radicals, which start chain reactions that damage cells. Antioxidant
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| Metabolism Metabolism is the set of chemical reactions that occur in living organisms in order to maintain life. These processes allow organisms to grow and reproduce, maintain their structures, and respond to their environments. Metabolism is usually divided into two categories. Catabolism breaks down organic matter, for example to harvest energy in cellular respiration. Anabolism, on the other hand, uses energy to construct components of cells such as proteins and nucleic acids. Metabolism
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| Physiology Physiology (from Greek , physis, "nature, origin"; and , -logia) is the study of the mechanical, physical, and biochemical functions of living organisms. Physiology has traditionally been divided between plant physiology and animal and all living things physiology but the principles of physiology are universal, no matter what particular organism is being studied. For example, what is learned about the physiology of yeast cells may also apply to human cells. Physiology
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| Platypus The Platypus (Ornithorhynchus anatinus) is a semi-aquatic mammal endemic to eastern Australia, including Tasmania. Together with the four species of echidna, it is one of the five extant species of monotremes, the only mammals that lay eggs instead of giving birth to live young. It is the sole living representative of its family (Ornithorhynchidae) and genus (Ornithorhynchus), though a number of related species have been found in the fossil record. Platypus
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| Leucine Leucine (abbreviated as Leu or L) is an α-amino acid with the chemical formula HO2CCH(NH2)CH2CH(CH3)2. It is an essential amino acid, which means that humans cannot synthesise it. Its codons are UUA, UUG, CUU, CUC, CUA, and CUG. With a hydrocarbon side chain, leucine is classified as a hydrophobic amino acid. It has an isobutyl R group. Leucine is a major component of the sub units in ferritin, astacin and other 'buffer' proteins. Leucine
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| Xenon Talk:Xenon
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| Ion channel Talk:Ion_channel
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| Bernard Katz Sir Bernard Katz, FRS (26 March 1911 German-born biophysicist, noted for his work on nerve biochemistry. He shared the Nobel Prize in physiology or medicine in 1970 with Julius Axelrod and Ulf von Euler. He was knighted in 1970.Born in Leipzig to a Jewish family, Germany, he was educated at the Albert Gymnasium in that city from 1921 to 1929 and went on to study medicine at the University of Leipzig. Bernard_Katz
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| John Boyd Orr, 1st Baron Boyd-Orr John Boyd Orr, 1st Baron Boyd-Orr, CH, DSO, MC, FRS 23 September 1880 – 25 June 1971), also known as Sir John Boyd Orr from 1935 to 1949, was a Scottish teacher, doctor, biologist and politician who received the Nobel Peace Prize for his scientific research into nutrition and his work as the first Director-General of the United Nations Food and Agriculture Organization (FAO). Co-founder and the first President (1960-1971) of the World Academy of Art and Science (WAAS). John_Boyd_Orr,_1st_Baron_Boyd-Orr
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| List of learned societies list of learned societies, grouped by country. List_of_learned_societies
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| Thermoregulation Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different. This process is one aspect of homeostasis:external environment (the study of such processes in zoology has been called ecophysiology or physiological ecology). Thermoregulation
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| Exercise physiology Exercise physiology is the study of the function of the human body during various acute and chronic exercise conditions. These effects are significant during both short, high intensity exercise as well as with prolonged strenuous exercise such as done in endurance sports like marathons, ultramarathons, and road bicycle racing. Exercise_physiology
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| Gastrin In humans, gastrin is a hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility. It is released by G cells in the stomach, duodenum, and the pancreas. Its existence was first suggested in 1905 by the British physiologist John Sydney Edkins, and gastrins were isolated in 1964 by Gregory and Tracy in Liverpool. Gastrin
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| GABA receptor GABA receptors are a class of receptors that respond to the neurotransmitter gamma-aminobutyric acid (GABA), the chief inhibitory neurotransmitter in the vertebrate central nervous system. There are two classes of GABA receptorsGABAA and GABAB.GABAA receptors are ligand-gated ion channels (also known as ionotropic receptors), whereas GABAB receptors are G protein-coupled receptors (also known as metabotropic receptors). GABA_receptor
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| Muscarinic acetylcholine receptor Muscarinic receptors, or mAChRs, are G protein-coupled acetylcholine receptors found in the plasma membranes of certain neurons and other cells. They play several roles, including acting as the main end-receptor stimulated by acetylcholine released from postganglionic fibers in the parasympathetic nervous system.Muscarinic receptors were named as such because they are more sensitive to muscarine than to nicotine. Th Muscarinic_acetylcholine_receptor
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| Phosphene "Phosphene" is also a common alternative spelling of Phosphine, PH3, a toxic and explosive gas. phosphene is an entoptic phenomenon characterized by the experience of seeing light without light actually entering the eye. The word phosphene comes from the Greek words phos (light) and phainein (to show). Phosphene
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| Leukotriene Leukotrienes are naturally produced eicosanoid lipid mediators, which may be responsible for the effects of an inflammatory response. Leukotrienes use both autocrine signalling and paracrine signalling to regulate the body's response. Leukotrienes are produced in the body from arachidonic acid by the enzyme 5-lipoxygenase. Their production by the body is part of a complex response that usually includes the produc Leukotriene
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| Nodes of Ranvier Nodes of Ranvier are the gaps (approximately 1 micrometer in length) formed between the myelin sheaths generated by different cells. A myelin sheath is a many-layered coating, largely composed of a fatty substance called myelin, that wraps around the axon of a neuron and very efficiently insulates it. At nodes of Ranvier, the axonal membrane is uninsulated and therefore capable of generating electrical activity. Nodes_of_Ranvier
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| Human musculoskeletal system Talk:Human_musculoskeletal_system
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| Lymphatic system Talk:Lymphatic_system
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