The most direct source of energy for cotransport is: the movement of one of the transported substances down its concentration gradient.
Cell transport can be defined as the movement of ions, liquid molecules, or other substances across a cell membrane, either into or out of the cell of a living organism.
In Science, the two (2) main types of cell transport include the following:
Cotransport refers to a type of secondary active transport which involves the simultaneous movement of substances across a cell membrane in which the energy required to move a substance against an electrical potential or concentration gradient is typically provided by the movement of another substance along its concentration gradient.
In conclusion, the movement of one of the substances that is being transported down its concentration gradient serves as the most direct source of energy for cotransport.
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