5 Questions
Where are photosystems located?
Inside the thylakoid membrane
What happens when a photosystem absorbs light energy?
The electrons become energised
What is the purpose of the light dependent reactions?
To generate energy for the light independent reactions
What is the role of Photosystem I and II?
To generate energy for the light independent reactions
Which of the following is NOT true about photosystems?
They are used to generate energy for the light independent reactions
Study Notes
- Photosystems are groups of photosynthetic pigments that are embedded within the thylakoid membrane.
- When a photosystem absorbs light energy, delocalised electrons within the pigments become energised or ‘excited'.
- These excited electrons are transferred to carrier molecules within the thylakoid membrane, and are used in the light dependent reactions.
- The light dependent reactions occur within the intermembrane space of the thylakoids, and involve the production of ATP and NADPH.
- The light dependent reactions are used to generate energy for the light independent reactions.
- The light dependent reactions are carried out by Photosystem I and Photosystem II, and are dependent on the light that is absorbed.
Test your knowledge on photosystems, light absorption, and the light dependent reactions in photosynthesis. This quiz covers the transfer of energised electrons, ATP and NADPH production, and the role of Photosystem I and Photosystem II.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
