Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL
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5-HT5-hydroxytryptamine (serotonin). Biologically active amine occurring as a hormone in plants and as both a hormone and a neurotransmitter in animals. Like acetylcholine, adrenalin and noradrenalin, serotonin acts on many organs of the body, either directly or by a neuronal reflex. | |
A |
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absorptive statePeriod after a meal during which glucose is entering the bloodstream after its absorption from the gut. | |
acetylcholineA neurotransmitter. (Adj. cholinergic.) | |
action potential | |
active site | |
active transportTransport processes across membranes that require the expenditure of energy and use specialised transport molecules. | |
adaptive characteristics | |
adenosine triphosphateSee ATP. | |
adipose tissueTissue composed of fat cells (adipocytes). The site of storage of fats (triacylglycerols). | |
affectTerm used in psychology and psychiatry as a way of describing a person’s responses of emotion and attention to events in the world around them. | |