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  • In photosynthetic electron transport, electrons travel through carriers organized in the "Z-scheme". The following are indicated as directions of electron flow:

In photosynthetic electron transport, electrons travel through carriers organized in the "Z-scheme". The following are indicated as directions of electron flow:

P.\mathrm{P_{680}>P Q_A>P_B>Cytb_6 f \rightarrow \text { Pheo }>P C \rightarrow P_{700}}

Q. \mathrm{\mathrm{P}_{700}>\mathrm{A}_0>\mathrm{A}_1>\mathrm{FeS}_{\mathrm{X}}>\mathrm{FeS}_{\mathrm{A}}>\mathrm{FeS}_{\mathrm{B}}>\mathrm{Fd}}

R. \mathrm{P_{680}>P h e o>P Q_A>PQ_B>Cy tb_6 f \rightarrow P C>P_{700}}

S. \mathrm{\mathrm{P}_{700}>\mathrm{A}_1>\mathrm{A}_0>\mathrm{FeS}_{\mathrm{B}}>\mathrm{FeS}_{\mathrm{A}}>\mathrm{FeS}_{\mathrm{X}}>\mathrm{Fd}}

Which of the combinations is correct?

 

Option: 1

P and Q


Option: 2

Q and R


Option: 3

R and S


Option: 4

P and S


Answers (1)

best_answer

According to the Z-scheme of photosynthetic electron transport, the flow of electrons occurs as follows:

\\Q. P_{700}>A_0>A_1>F_{e S}>F_e S_A>F_{e S}>F d\\ \\R. P_{680}>P h e 0>P_A>P_B>C^2 y t_6 f>P C>P_{700}

Therefore, the correct combination is Q and R, as stated in option 2.

Posted by

sudhir kumar

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