During photosynthesis in chloroplasts, energy is used to split water, forming oxygen and hydrogen ions - VCE - SSCE Biology - Question 7 - 2014 - Paper 1
Question 7
During photosynthesis in chloroplasts, energy is used to split water, forming oxygen and hydrogen ions.
The splitting of water occurs
- in the stroma during the lig... show full transcript
Worked Solution & Example Answer:During photosynthesis in chloroplasts, energy is used to split water, forming oxygen and hydrogen ions - VCE - SSCE Biology - Question 7 - 2014 - Paper 1
Step 1
in the stroma during the light-independent reaction.
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Answer
The splitting of water does not occur in the stroma; instead, this stage involves the utilization of ATP and NADPH produced in the light-dependent reactions.
Step 2
in the grana during the light-dependent reaction.
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Answer
The splitting of water occurs in the thylakoid membranes within the grana during the light-dependent reactions. This process is known as photolysis.
Step 3
on the membrane of the thylakoids during the light-independent reaction.
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Answer
This statement is incorrect as the thylakoid membranes are involved in the light-dependent reactions, not the light-independent reactions.
Step 4
on the surface of the outer chloroplast membrane during the light-dependent reaction.
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Answer
Water splitting occurs within the thylakoid membranes rather than on the outer membrane of the chloroplast.
