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Questions and Answers
What is the main purpose of photolysis of water in photosynthesis?
What is the main purpose of photolysis of water in photosynthesis?
- To produce ATP and NADPH + H+
- To replace electrons in photosystem II (correct)
- To release oxygen into the air and hydrogen ions into the thylakoid space
- To add phosphate to ADP to form ATP
Which pigment is photoactivated in the reaction center of photosystem II?
Which pigment is photoactivated in the reaction center of photosystem II?
- Primary electron acceptor
- Phaeophytin
- Accessory pigments
- Chlorophyll a P680 (correct)
What is the primary role of non-cyclic photophosphorylation in photosynthesis?
What is the primary role of non-cyclic photophosphorylation in photosynthesis?
- Splitting water molecules using light
- Produce ATP, NADPH + H+, and O2 (correct)
- Releasing hydrogen ions into the thylakoid space
- Replacing electrons in photosystem II
What happens to the hydrogen ions released into the thylakoid space during photosynthesis?
What happens to the hydrogen ions released into the thylakoid space during photosynthesis?
What is the function of the electron transport chain in photosynthesis?
What is the function of the electron transport chain in photosynthesis?
What is the role of plastocyanin (Pc) in the electron transport chain?
What is the role of plastocyanin (Pc) in the electron transport chain?
What is the ultimate product of the electron transport chain in photosynthesis?
What is the ultimate product of the electron transport chain in photosynthesis?
Where does the electron released from the P700 in PS I go next?
Where does the electron released from the P700 in PS I go next?
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Study Notes
Photolysis of Water in Photosynthesis
- The main purpose of photolysis of water in photosynthesis is to produce ATP and NADPH.
Photosystem II
- The pigment that is photoactivated in the reaction center of photosystem II is P680.
Non-Cyclic Photophosphorylation
- The primary role of non-cyclic photophosphorylation in photosynthesis is to generate ATP and NADPH.
Thylakoid Space
- The hydrogen ions released into the thylakoid space during photosynthesis create a proton gradient used to drive ATP synthesis.
Electron Transport Chain
- The function of the electron transport chain in photosynthesis is to generate a proton gradient used to drive ATP synthesis.
Plastocyanin (Pc)
- The role of plastocyanin (Pc) in the electron transport chain is to transfer electrons from cytochrome b6f to photosystem I.
Electron Transport Chain Product
- The ultimate product of the electron transport chain in photosynthesis is ATP.
Photosystem I (PS I)
- The electron released from the P700 in PS I goes next to plastocyanin (Pc).
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