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Biology, 10.03.2020 17:13 chauntkm9

Which of the following is the correct order of electron flow in the light reactions of photosynthesis?

a) O2 β†’ P680 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Pq β†’ cytochrome complex β†’ Pc β†’ P700 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Fd β†’ NADPH
b) H2O β†’ P680 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Pq β†’ cytochrome complex β†’ Pc β†’ P700 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Fd β†’ NADPH
c) H2O β†’ P700 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Pc β†’ cytochrome complex β†’ Pq β†’ P680 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Fd β†’ NADPH
d) H2O β†’ P680 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Pq β†’ cytochrome complex β†’ Pc β†’ P700 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Fd β†’ ATP
e) H2O β†’ P680 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Pq β†’ ATP β†’ Pc β†’ P700 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Fd β†’ NADPHWhich of the following is the correct order of electron flow in the light reactions of photosynthesis?

a) O2 β†’ P680 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Pq β†’ cytochrome complex β†’ Pc β†’ P700 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Fd β†’ NADPH
b) H2O β†’ P680 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Pq β†’ cytochrome complex β†’ Pc β†’ P700 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Fd β†’ NADPH
c) H2O β†’ P700 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Pc β†’ cytochrome complex β†’ Pq β†’ P680 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Fd β†’ NADPH
d) H2O β†’ P680 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Pq β†’ cytochrome complex β†’ Pc β†’ P700 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Fd β†’ ATP
e) H2O β†’ P680 chlorophyll a pair β†’ PS II primary electron acceptor β†’ Pq β†’ ATP β†’ Pc β†’ P700 chlorophyll a pair β†’ PS I primary electron acceptor β†’ Fd β†’ NADPH

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