BIOL 112 Lecture Notes - Lecture 20: Heliobacteria, Adenosine Triphosphate, Chemotroph
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BIOL 112 Full Course Notes
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Document Summary
All cells use energy in the form of atp (adenosine triphosphate) : the molecule that provides energy in a form that all cells can readily use to perform the work of the cell. Atp is the universal energy currency for all cells. Carbon is the backbone of organic molecules that make up cells. Organism have 2 ways of harvesting energy from their environment and two sources of carbon. That means there are 4 principal ways in which organism acquire energy and materials needed to grow, function and reproduce. Organisms can be classified according to their energy and carbon sources. Two ways of harvesting energy from the their environment: from the sun or from chemical compounds. Organisms that capture energy from the sun are phototrophs (ex: plants) Plants convert carbon dioxide and water into water and oxygen. Sugar (glucose) contain energy in their chemical bonds that can be used to synthesize atp (which into can power the work of the cell)
