tejaswini Posted February 10, 2006 Posted February 10, 2006 when the cells divide by binary fission they expand , but why does this take place ? is there a chemical mechanism behind this.
sunspot Posted February 10, 2006 Posted February 10, 2006 I believe this has to do with osmosis. During cell cycles the sodium/potassium pumps/channels are more subject to reversal. The helps reset the cation ratio of Na/K quickly at the sodium pumps resulting in a faster firing rate at the sodium pumps. It also causes more cations to be in the cell at any given time. This pulls water into the cell via osmosis.
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