BIO 129 Chapter Notes - Chapter 1-5: Embryonic Stem Cell, Streptococcal Pharyngitis, Coupling Reaction
30 Oct 2017
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Energy requiring: human cells can only survive in a controlled environment outside the body, an advantage is that human survival doesn"t depend on the survival of one cell -- even directed to commit suicide (apoptosis) . To keep the difference between the salt content inside a cell and outside of it, cells use a lot of organizational energy. Since water can leave the cell more easily than salt-- when the salt inside a cell is less than outside, the cell will shrink as the water gushes out. iii. - when doing aerobic exercises the body needs more oxygen than it can get, so when you stop doing exercise, you pay your oxygen debt because you"re still breathing heavy after you finish. Partially used sugar molecules must be eliminated during oxygen process: example: skin cells die at a certain rate and die at a certain, life is balance. rate.
