The cell is bound by an outer membrane that, in accord with the fluid mosaic model, is comprised of a phospholipid lipid bilayer with proteins--molecules that also act as receptor sites--interspersed within the phospholipid bilayer. Varieties of...

Active transport is movement of molecules across a cell membrane or membrane of a cell organelle, from a region of low concentration to a region of high concentration. Since these molecules are being moved against a concentration gradient, cellular...

The process whereby a molecule or ION is moved across a cell membrane against a concentration or electrical gradient. Active transport is characterized by the expenditure of energy released from the breakdown of ADENOSINE TRIPHOSPHATE (ATP) by a...

Transport is the controlled movement of substances from one part of a cell to another, or from one side of a cell membrane to the other. Because each cell must maintain an internal environment different from the external environment, it must regulate...

Active transport (sometimes called active uptake) is the mediated transport of biochemicals, and other atomic/molecular substances, across membranes. Unlike passive transport, this process requires the expenditure of cellular energy, often in the form...

Approves New Galileo Funds Work on the Galileo satellite navigation system has regained its momentum following action last month by the European Union (EU) Council of Transport Ministers that, among other things, authorizes the immediate release of [epsilon]100 million (about $90 million)...

The $50 mil merger was completed Oct 1994 combining the 2,700 workforce of Jupiter Transportation with its new parent's 400-member staff. Charlie Johnson, owner of Active Transport and former lineman for the Baltimore Colts, used his 16-year job with Ford Motor Co to launch...