Then, where are the protons and O₂ formed likely to be released – in… — Biology

Question 7 of 17intermediate💡 UnderstandVery Short1 mark

Then, where are the protons and O₂ formed likely to be released – in the lumen? or on the outer side of the membrane?

Correct Answer

The protons and O₂ are released in the lumen. This is because the water splitting complex is physically located on the inner side of the membrane.

Exercise: 11.6.1 Splitting of Water | Q: In-text 9 | (Page Page 9)

For More Understanding

Explanation

The textbook context explicitly states that the splitting of the water molecule takes place on the inner side of the membrane. Consequently, the protons (hydrogen ions) produced by this splitting accumulate within the lumen of the thylakoids. Since the reaction site is the inner side, the oxygen released is also released into the lumen.

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