electrogenic pump
Ion pump that generates net charge flow as a result of its activity. The sodium-potassium exchange pump transports two potassium ions inward across the cell membrane for each three sodium ions transported outward. This produces a net outward current that contributes to the internal negativity of the cell.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • electrogenic pump — a protein channel pump in which the ion exchange is not one to one and hyperpolarization results on one side of the membrane. Cf. sodium p …   Medical dictionary

  • electrogenic — elec·tro·gen·ic jen ik adj of or relating to the production of electrical activity in living tissue <an electrogenic pump causing movement of sodium ions across a membrane> * * * elec·tro·gen·ic (e lek″tro jenґik) [electro + genic]… …   Medical dictionary

  • electrogenic — adjective Date: circa 1890 of or relating to the production of electrical activity in living tissue < an electrogenic pump > • electrogenesis noun …   New Collegiate Dictionary

  • electrogenic — ˌ adjective Etymology: electr + genic : of or relating to the production of electrical activity in living tissue an electrogenic pump causing movement of sodium ions across a membrane …   Useful english dictionary

  • 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

  • Na+/K+-ATPase — Flow of ions. Alpha and beta units …   Wikipedia

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  • Membrane potential — Differences in concentration of ions on opposite sides of a cellular membrane lead to a voltage called the membrane potential. Many ions have a concentration gradient across the membrane, including potassium (K+), which is at a high inside and a… …   Wikipedia

  • nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …   Universalium

  • Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …   Wikipedia

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