Question

# ATP synthesis in cell requires

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

Solution

## The correct option is A $$H^+$$ gradient across the membraneA) 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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