Light Reactions of Photosynthesis Video Lessons

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Problem: When donating its activated electron, the chlorophyll in photosystem II (P680) is said to be a very powerful oxidizing agent. This is best shown by its ability to… a. make use of a proton electrochemical gradient to drive the formation of ATP. b. force the oxidation of oxygen in water to oxygen gas. c. donate an electron to plastoquinone (Pq). d. absorb light energy to power redox reactions. e. force the reduction of NADP+ to NADPH.

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Problem Details

When donating its activated electron, the chlorophyll in photosystem II (P680) is said to be a very powerful oxidizing agent. This is best shown by its ability to…

a. make use of a proton electrochemical gradient to drive the formation of ATP.

b. force the oxidation of oxygen in water to oxygen gas.

c. donate an electron to plastoquinone (Pq).

d. absorb light energy to power redox reactions.

e. force the reduction of NADP+ to NADPH.

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Based on our data, we think this problem is relevant for Professor Angeles Boza's class at UCONN.