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defon
3 years ago
6

Which of the following statements must be true in order for ATP synthase present in chloroplasts to function properly?

Biology
1 answer:
Agata [3.3K]3 years ago
7 0
<h3><u>Answer;</u></h3>

b. the pH of the stroma must be higher than the pH of the thylakoid lumen

<h3><u>Explanation</u>;</h3>
  • <em><u>Energy from an electron transport chain is used to actively transport protons from the stroma to the thylakoid lumen. Thus the lumen has a relatively higher proton concentration and therefore a lower pH than the stroma.</u></em>
  • Higher [H+] means lower pH, while Lower [H+] means higher pH. During the process of photosynthesis, the lumen becomes acidic, as low as pH 4, compared to pH 8 in the stroma.
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The cross is depicted in the attachment.

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