Examlex
As shown in the accompanying figure, a logical, standard page layout provides visual consistency across all pages at a site.
Binding Site
A specific region on a protein or enzyme where a particular molecule, such as a substrate, hormone, or drug, can form a stable complex, initiating a biological action.
Secondary Active Transport
involves the movement of substances across a cell membrane utilizing energy indirectly from the electrochemical gradient established by primary active transport.
Concentration Gradient
A difference in the concentration of a substance across a distance, leading to substances moving from an area of high concentration to one of lower concentration.
Carrier Molecule
A protein that facilitates the transport of specific substances across a cell membrane by changing its shape.
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