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Question

ATP synthesis in cell requires


A
H+ gradient across the membrane
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B
K+ gradient across the membrane
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C
PO34 gradient across the membrane
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D
Ca2+ gradient across the membrane
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Solution

The correct option is A $$H^+$$ gradient across the membrane
A) A $${ H }^{ + }$$ gradient or proton pump is developed in the lumen of the thylakoid which helps in ATP synthesis.
B) $${ K }^{ + }$$ does not play a role in ATP synthesis.
C) $${ PO }_{ 4 }^{ 3- }$$ does not play a role in ATP synthesis.
D) $${ Ca }^{ 2+ }$$ is involved in the photolysis of water.
So the correct answer is '$${ H }^{ + }$$ gradient across the membrane'.

Biology

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