5 Questions
What are the two light-dependent reactions involved in photosynthesis?
photosystem II (PSII) and photosystem I (PSI)
What is the by-product created in oxygenic photosynthesis?
oxygen (O2)
What is the main process by which plants acquire energy?
photosynthesis
How is ATP produced in non-cyclic photophosphorylation?
Cytochrome b6f uses electrons from PSII and energy from PSI to pump protons from the stroma to the lumen, creating a proton gradient across the thylakoid membrane used by ATP synthase to form ATP
Why is cyclic photophosphorylation important?
It is important to create ATP and maintain NADPH in the right proportion for the light-independent reactions.
Study Notes
Photosynthesis Process
- Two light-dependent reactions involved in photosynthesis are: Light-Dependent Reactions and Calvin Cycle
- By-product created in oxygenic photosynthesis is Oxygen
Energy Acquisition in Plants
- Main process by which plants acquire energy is Photosynthesis
ATP Production
- In non-cyclic photophosphorylation, ATP is produced through Electron Transport Chain, which generates a proton gradient that drives ATP synthesis
- In non-cyclic photophosphorylation, ATP is produced in the Thylakoid Membrane
Importance of Cyclic Photophosphorylation
- Cyclic photophosphorylation is important because it generates ATP only, without producing NADPH or Oxygen, which is essential for plants in low-light conditions or when CO2 is limited
Test your knowledge of the light-dependent reactions in photosynthesis with this quiz. Explore the processes that occur at photosystem II (PSII) and photosystem I (PSI) as well as the electron transport chain.
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