Multiple Choice
Where in the chloroplast is NADPH synthesized?
12. Photosynthesis
Light Dependent Reactions
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Oxygen is formed by a reaction occurring where?
A
Photosystem I
B
Photosystem II
C
Cytochrome B6F complex
D
NADP+ reductase
Verified step by step guidance1
Understand the context of the problem: The question is asking about the location within the photosynthetic process where oxygen is produced.
Recall the process of photosynthesis: Photosynthesis occurs in the chloroplasts of plant cells and involves two main stages: the light-dependent reactions and the Calvin cycle.
Identify the components involved in the light-dependent reactions: These include Photosystem II, Photosystem I, the cytochrome b6f complex, and NADP+ reductase.
Focus on Photosystem II: In the light-dependent reactions, Photosystem II is responsible for the photolysis of water, which is the splitting of water molecules into oxygen, protons, and electrons.
Conclude that oxygen is formed in Photosystem II: The splitting of water in Photosystem II releases oxygen as a byproduct, which is then released into the atmosphere.
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