Podcast
Questions and Answers
What is the process called when a photon energizes chlorophyll and splits water into hydrogen and oxygen ions?
What is the process called when a photon energizes chlorophyll and splits water into hydrogen and oxygen ions?
What two stages does the light reaction occur in?
What two stages does the light reaction occur in?
What is produced by the photolysis of water?
What is produced by the photolysis of water?
Study Notes
- In the light reaction, a beam of photons energizes chlorophyll and causes it to release an electron, which in turn splits water into hydrogen ions and oxygen ions.
- This process is called photolysis of water and produces ATP.
- Another name for this process is cyclic photophosphorylation.
- It occurs in two stages: photoexcitation of chl-a and photolysis of water.
- In the first stage, a photon ejects an electron from a chlorophyll, which liberates oxygen and water.
- In the second stage, the freed oxygen photolyzes water to produce ATP.
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Description
Test your knowledge on the light reaction process of photosynthesis, involving the photolysis of water and ATP production through cyclic photophosphorylation.
