DENDROLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -14.5 The dark reactions: the Calvin cycle. Carbon dioxide is fixed by a series of light-independent reactions, called the dark reactions, which utilize the NADPH and ATP generated by light-dependent electron transport within the thylakoid membranes.

Detailed explanation-3: -In eukaryotic cells, both the light and dark reactions of photosynthesis occur within chloroplasts-the light reactions in the thylakoid membrane and the dark reactions within the stroma.