Question

Name the part of the chloroplast where the light reaction takes place.

Answer 1

Chloroplast:

1. It is a cellular organelle found in plant cells.
2. Chloroplasts contain green photosynthetic pigments called chlorophyll.
3. Chlorophyll absorbs solar energy and uses it for the splitting of water molecules to release ions. Thus, it converts solar energy into chemical energy.
4. ${\mathrm{H}}_2\mathrm{O}\left(\mathrm{water}\right)\underset{\mathrm{Sunlight}}{\overset{\mathrm{Chlorophyll}}{\to }}{\mathrm{H}}^{+}+{\mathrm{OH}}^{-}$
5. The light reaction of photosynthesis takes place in chlorophyll-containing thylakoid discs of the chloroplast.