Photosynthesis: light-dependent reactions

Front

What are the two products of the light reactions that are needed for the Calvin cycle?

Back

NADPH and ATP

Front

What supplies the electron that is lost in Photosystem II (PS II)?

Back

Water

Front

What are thylakoids arranged in stacks called?

Back

Granum

Front

Why do leaves appear green?

Back

They contain a molecule named chlorophyll.

Front

What is the principal chemical compound that living things use to store energy?

Back

ATP

Front

What is the role of chlorophyll in photosynthesis?

Back

Chlorophyll absorbs light energy, primarily in the blue and red wavelengths, and converts it into chemical energy.

Front

What are the light-dependent reactions of photosynthesis?

Back

They are the first stage of photosynthesis where light energy is converted into chemical energy in the form of ATP and NADPH.

Front

Where do the light-dependent reactions occur?

Back

In the thylakoid membranes of chloroplasts.

Front

What is the function of NADPH in photosynthesis?

Back

NADPH provides the reducing power (electrons) needed for the Calvin cycle to convert carbon dioxide into glucose.

Front

What is the significance of water in the light-dependent reactions?

Back

Water is split to provide electrons for Photosystem II and releases oxygen as a byproduct.