Primary nutritional groups
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Primary nutritional groups are groups of organisms, divided according to the sources of energy, electrons, and carbon needed for living, growth, and reproduction. The sources of energy can be light or
Yellow fungus
Chemotroph
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A chemotroph is an organism that obtains energy by the oxidation of electron donors in their environments. These molecules can be organic or inorganic. The chemotroph designation is in contrast to pho
Primary nutritional groups
…respiration, or various metabolic intermediates in fermentation. Phototrophs absorb light in photoreceptors and transform it into chemical energy. Chemotrophs directly absorb chemical energy from molecules. The free energy is stored as potential energy in ATP, carbohydrates, or proteins. Eventually, the energy…
A black smoker vent in the Atlantic Ocean, providing energy and nutrients for chemotrophs