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Page history last edited by gerryc 13 years, 4 months ago

C6. All cells require energy.


Student Outcome: C6.1

Know that all living cells use energy for movement, synthesis, and maintenance of a stable intracellular environment.



Life is an energy intensive process. It takes energy to operate muscles, extract wastes, make new cells, heal wounds, even to think. It’s in an organism’s cells where all this energy is spent. In some cells, as much as half of a cell’s energy output is used to transfer molecules across the cell membrane, a process called ‘active transport.’


Cell movements require energy and thousands of energy-hungry chemical reactions go on in every living cell, every second, every day. The kind of energy cells use is chemical bond energy, the shared electrons that holds atoms together in molecules.


Other than that, I've got nothing.


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