State one reason why energy pathways (in cell) involve many small regulated steps? Anyone can help with this, if they know about cell?
The simple answer to this is that there is a tremendous amount of energy needed to perform various metabolic processes (i.e. glycolysis which converts glucose to pyruvate).
By performing small regulated steps (and with the help of metabolic enzymes and cofactors), the energy requirement is considerably lessened, otherwise the cell (and the body) would spontaneously combust.