Question

1.Why does the light-dependent reaction need sunlight?

Answer 1

Answer:

Light-dependent reactions happen in the thylakoid membrane of the chloroplasts and occur in the presence of sunlight. The sunlight is converted to chemical energy during these reactions. The chlorophyll in the plants absorb sunlight and transfers to the photosystem which are responsible for photosynthesis.•‿•

Answer 2

Answer:2. The light-dependent reactions convert light energy into chemical energy. The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH. ... Within chloroplasts, chlorophyll is the pigment that absorbs sunlight.