- Life Sciences
the movement of molecules across a membrane against the concentration gradient, from an area of lower concentration to an area of higher concentration of a particular molecule, using energy supplied by ATP.
a viral disease caused by Lyssavirus spp that causes acute inflammation of the brain in...
modified phloem parenchyma cells that help translocate food substances in the plant.
(also called polymers) large, more complex molecules formed when monomers join together.