ET 3.6 Light Dependent Reaction 11/19/24

Front

What is the primary role of sunlight in photosynthesis?

Back

Sunlight is used to break down water during the light-dependent reactions.

Front

What is the waste product of the light-dependent reactions of photosynthesis?

Back

Oxygen.

Front

Which molecule is not required to initiate the light-dependent reactions?

Back

CO2.

Front

What is the function of ATP synthase in the light-dependent reactions?

Back

ATP synthase allows H+ ions to diffuse through it to create ATP.

Front

What are the two main products of the light-dependent reactions that are essential for the Calvin cycle?

Back

NADPH and ATP.

Front

What is the significance of creating a concentration gradient of H+ ions in the thylakoid space?

Back

It drives the synthesis of ATP through ATP synthase.

Front

What are thylakoids and where are they located?

Back

Thylakoids are membrane-bound structures within chloroplasts where the light-dependent reactions occur.

Front

What is the role of NADPH in photosynthesis?

Back

NADPH provides the reducing power for the Calvin cycle.

Front

How does light energy contribute to the formation of ATP?

Back

Light energy excites electrons, which are used in the electron transport chain to pump H+ ions and create a gradient for ATP synthesis.

Front

What is photolysis and its role in photosynthesis?

Back

Photolysis is the process of breaking down water molecules using light energy, producing oxygen and H+ ions.