which best describes how the photosystems are used in the light - dependent reactions? photosystem i is used…

which best describes how the photosystems are used in the light - dependent reactions? photosystem i is used first then photosystem ii photosystem ii is used first then photosystem i both processes are used at the same time. both processes are used during the light - independent reactions.

which best describes how the photosystems are used in the light - dependent reactions? photosystem i is used first then photosystem ii photosystem ii is used first then photosystem i both processes are used at the same time. both processes are used during the light - independent reactions.

Answer

Brief Explanations:

In the light - dependent reactions of photosynthesis, photosystem II is used first to capture light energy and start the electron - transport chain. Then photosystem I is used to further process electrons and generate energy - carrying molecules.

Answer:

photosystem II is used first then photosystem I