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Unformatted text preview: need of light and any other energy source ATP CAN BE CREATED WITHOUT THE HELP OF ENERGY SOURCES Plants and bacteria generate ATP by pumping protons which is the secret of photosynthesis and all forms of respiration o Pumping of protons is fundamental as it as much a signature of life on earth as DNA Proton-motive force o Acts as a kind of force field, enveloping bacteria with an impalpable source of power o Involved in the active transport of molecules in and out of the cell across the external membrane o Bacteria are proton-powered Depends on proton power rather than ATP Proton Gradient Importance Proton pumping does take up ATP, but only small amounts. This leaves enough ATP for other cell functions that require more ATP....
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This note was uploaded on 04/09/2011 for the course BIO SCI 2A taught by Professor Gerhart during the Winter '11 term at UC Davis.
- Winter '11