Cells use energy in different ways {troph}. Organisms {phototroph} can use sunlight for energy. Non-sulfur purple bacteria {photoorganotroph} are photosynthetic. Organisms {chemotroph} can use energy-containing molecules and oxidation-reduction reactions for energy. Organisms {lithotroph} can use water, hydrogen sulfide, sulfur, ammonia, hydrogen, or ferrous compounds as electron donors to cause oxidation. Organisms {organotroph} can use glucose and other organic electron donors to cause oxidation.
Physical Sciences>Chemistry>Biochemistry>Chemical Cycle>Energy
5-Chemistry-Biochemistry-Chemical Cycle-Energy
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Date Modified: 2022.0224