An antiporter is an integral membrane protein that is involved in secondary active transport. Integral membrane protein of the transmembrane type An Integral Membrane Protein (IMP) is a protein molecule (or assembly of proteins) that in most cases spans the biological membrane with which it is associated (especially the plasma membrane) or which, in any case, is sufficiently embedded in the membrane to remain... Active transport is the mediated transport of biochemicals, and other atomic/molecular substances, across membranes. ...
It works by binding to one molecule of solute outside the membrane, and one molecule on the inside. By using S2's gradient, we are able to transport S1 against its gradient. A molecule is the smallest particle of a pure chemical substance that still retains its chemical composition and properties. ...
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