Unformatted text preview: Photons can excite electrons on chlorophyll. The excited electron can be passed along ETC and power proton pumps to form PMF. The PMF can make ATP. 5. What is one way of storing captured light energy? The energy that is captured as described in question 4 can be stored transiently in ATP or NAD(P)H. But, for longer term storage, the energy is stored by reducing carbon or carbon fixation via the Calvin Cycle. Using CO2 to form sugar. 6. Dinitrophenol (DNP) is a membrane-soluble weak acid that can shuttle protons across a biological membrane, and is considered as a metabolic poison. a. How would this chemical affect aerobic respiration? This poison will destroy the PMF, so little to no ATP can be formed from ETC and from NADH->NAD+. b. How about photosynthesis? Also destroys PMF, no ATP formed from electron excitement....
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This note was uploaded on 06/02/2010 for the course BIS 2A taught by Professor Grossberg during the Winter '08 term at UC Davis.
- Winter '08