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Which of the following statements about the light reactions of photosynthesis are correct?   1. Absorption of light does one thing: it makes chlorophyll easier to oxidize. 2. In PSII, the rate of damage to the D1 protein can never exceeds the rate of repair. 3. Electron transport is spontaneous (exergonic) as electrons move from P680* to P700+. 4. Compared to anoxygenic photosynthesis, in oxygenic photosynthesis less light needs to be absorbed to reduce NADP+.   A.  1,2 and 3   B.  1 and 3   C.  2 and 4   D.  4 only   E. All of 1,2,3 and 4 are correct

Which of the following statements about the light reactions of photosynthesis are correct?   1. Absorption of light does one thing: it makes chlorophyll easier to oxidize. 2. In PSII, the rate of damage to the D1 protein can never exceeds the rate of repair. 3. Electron transport is spontaneous (exergonic) as electrons move from P680* to P700+. 4. Compared to anoxygenic photosynthesis, in oxygenic photosynthesis less light needs to be absorbed to reduce NADP+.   A.  1,2 and 3   B.  1 and 3   C.  2 and 4   D.  4 only   E. All of 1,2,3 and 4 are correct

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Which of the following statements about the light reactions of photosynthesis are correct?

 

1. Absorption of light does one thing: it makes chlorophyll easier to oxidize.

2. In PSII, the rate of damage to the D1 protein can never exceeds the rate of repair.

3. Electron transport is spontaneous (exergonic) as electrons move from P680* to P700+.

4. Compared to anoxygenic photosynthesis, in oxygenic photosynthesis less light needs to be absorbed to reduce NADP+.

  •  
    A. 

    1,2 and 3

  •  
    B. 

    1 and 3

  •  
    C. 

    2 and 4

  •  
    D. 

    4 only

  •  
    E. All of 1,2,3 and 4 are correct
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