Which of the following processes would be most directly affected if a thylakoid membrane is punctured so that the interior of th
e thylakoid is no longer separated from the stroma? a. synthesis of ATP
b. flow of electrons from photosystem II to photosystem I
c. splitting of water
d. reduction of NADP+
Synthesis of ATP would be directly affected (correct answer A)
Explanation:
While photosynthesis and the electron transport in thylakoid-membrane occur, a gradient in proton concentration is made. Then, this protons go through a protein complex (ATPasa, present in thylakoid membrane) down a concentration gradient into stroma, and this potential energy is used to synthesize ATP (energy for the cell).
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