Cellular Energy, Chemical Reactions, and Metabolic Pathways

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Cellular Energy, Chemical Reactions, and Metabolic Pathways Compare physical and cellular definitions for the term "energy". Physical: The ability to do work Cellular: The ability to make specific changes occur Name and describe five sorts of energy changes that occur in cells. Biosynthesis Movement Concentration of substances Generation of electrical potential Heat Biosynthesis The building up of biomolecules or biological structures within a living cell; a process that requires energy (Synthetic work is demonstrated by the making of daughter cells from a parent cell) Movement Represented by the streaming movement of the cytoplasm Concentration of substances effected by active transportation Energy of Concentration the work of moving molecules or ions against a concentration gradient, that is, moving them from where they are less concentrated to where they are already more concentrated Electrical potential A difference in charge across a membrane based on a difference in the concentration of positive and or negative ions across the membrane Cathedrals and cells require energy for their construction Energy is the ability to make a specific changes occur within a cell Cellular energy
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