3 Questions
What is the process called when a photon energizes chlorophyll and splits water into hydrogen and oxygen ions?
Cyclic Photophosphorylation
What two stages does the light reaction occur in?
Photolysis and Photoexcitation
What is produced by the photolysis of water?
ATP
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.
Test your knowledge on the light reaction process of photosynthesis, involving the photolysis of water and ATP production through cyclic photophosphorylation.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
