active uptake

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• Active transport — This article is about transport in cellular biology. For human transport systems, see active transportation. The action of the sodium potassium pump is an example of primary active transport. Active transport is the movement of a substance… …   Wikipedia

• active — adjective Etymology: Middle English, from Anglo French or Latin; Anglo French actif, from Latin activus, from actus, past participle of agere to drive, do more at agent Date: 14th century 1. characterized by action rather than by contemplation or …   New Collegiate Dictionary

• active — ac·tive ak tiv adj 1) capable of acting or reacting esp. in some specific way <an active enzyme> <active nitrogen> 2) tending to progress or to cause degeneration <active tuberculosis> 3) exhibiting optical activity 4) requiring …   Medical dictionary

• Glucose uptake — Method of glucose uptake differs throughout tissues depending on two factors; the metabolic needs of the tissue and availability of glucose. The two ways in which glucose uptake can take place are facilitated diffusion (a passive process) and… …   Wikipedia

• hormone — hormonal, hormonic /hawr mon ik, moh nik/, adj. /hawr mohn/, n. 1. Biochem. any of various internally secreted compounds, as insulin or thyroxine, formed in endocrine glands, that affect the functions of specifically receptive organs or tissues… …   Universalium

• angiosperm — /an jee euh sperrm /, n. Bot. a plant having its seeds enclosed in an ovary; a flowering plant. Cf. gymnosperm. [ANGIO + SPERM] * * * ▪ plant Introduction       any member of the more than 300,000 species of flowering plants (division Anthophyta) …   Universalium

• muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… …   Universalium

• Excitotoxicity — is the pathological process by which nerve cells are damaged and killed by glutamate and similar substances. This occurs when receptors for the excitatory neurotransmitter glutamate such as the NMDA receptor and AMPA receptor are overactivated.… …   Wikipedia

• Aspartame controversy — The artificial sweetener aspartame has been the subject of public controversy regarding its safety and the circumstances around its approval. Many studies have recommended further investigation into the possible connection between aspartame and… …   Wikipedia

• Hypothalamus — Brain: Hypothalamus Location of the human hypothalamus …   Wikipedia

• imbibition — uptake of water by non active methods, e.g. swelling of fish eggs shortly after fertilisation …   Dictionary of ichthyology