Question

Which of the following factors is needed during light-dependent reactions to create ATP and NADPH energy molecules?

Answer 1

Answer:

• Solar energy
• Carbon dioxide
• Water

Explanation:

Light-dependent reactions occur in the tilacoid membrane. For these reactions to take place, a complex of pigment in the leaves of plants, electron acceptors, carbon molecules, water and light must be involved. As a result of this phase we have the production of oxygen, ATP (from ADP + Pi) and also the formation of a substance called NADPH. Both ATP and NADPH; will be used in non-light dependent reactions.

Answer 2

Answer: The correct answer is- Solar energy, carbon dioxide, and water.

Light dependent reactions comprise the first phase of photosynthesis (formation of food by green plants and algae in presence of sunlight) process.

This phase occurs in the thylakoid membrane of chloroplast.

During this phase, a green pigment chlorophyll absorbs energy from sunlight (in the presence of carbon dioxide and water) and convert it into chemical energy in the form of ATP and NADPH.

This energy is further utilized in the formation of food (glucose) in the next phase, which is a light independent phase of photosynthesis.

In photosynthesis, oxygen is produced by splitting of water molecule and it is released in the atmosphere.

Thus, solar energy, carbon dioxide, and water is the right answer.