Primary Active Transport

Primary Active Transport

Active transport is the movement of all types of molecules across a cell membrane against its concentration gradient (from low to high concentration). In all cells, this is usually concerned with accumulating high concentrations of molecules that the cell needs, such as ions, glucose and amino acids. If the process uses chemical energy, such as from adenosine triphosphate (ATP), it is termed primary active transport. Secondary active transport involves the use of an electrochemical gradient. Active transport uses cellular energy, unlike passive transport, which does not use cellular energy. Active transport is a good example of a process for which cells require energy. Examples of active transport include the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants.

Read more about Primary Active Transport:  Details, Primary Active Transport, ATP Using Primary Active Transport Types, Secondary Active Transport, Examples, Endocytosis, See Also

Other articles related to "active, primary active transport, transport":

Strategic Air Command - History - Early History 1946–58
... Also active was the 73rd Bombardment Wing, Very Heavy, transferred from Third Air Force ... Introduced into active service in 1951, the B-47 was the first jet aircraft employed by SAC ... became a reality in 1954 with the introduction of the KC-97 Stratotanker into active service ...
Secondary Active Transport - Primary Active Transport - Model of Active Transport
... ATP hydrolysis is used to transport hydrogen ions against the electrochemical gradient (from low to high hydrogen ion concentration) ... a conformational (shape) change that drives the hydrogen ions to transport against the electrochemical gradient ...

Famous quotes containing the words transport, primary and/or active:

    One may disavow and disclaim vices that surprise us, and whereto our passions transport us; but those which by long habits are rooted in a strong and ... powerful will are not subject to contradiction. Repentance is but a denying of our will, and an opposition of our fantasies.
    Michel de Montaigne (1533–1592)

    The primary function of a theater is not to please itself, or even to please its audience. It is to serve talent.
    Robert Brustein (b. 1927)

    In this lucid and flexible pattern only one thing remained always stationary, but this fallacy went unnoticed by Martha. The blind spot was the victim. The victim showed no signs of life before being deprived of it. If anything, the corpse which had to be moved and handled before burial seemed more active than its biological predecessor.
    Vladimir Nabokov (1899–1977)