The light-dependent reactions occur only during the daylight .i.e in the presence of sunlight and are mainly observed in the plants, particularly in the biological process of photosynthesis. The light reactions usually take place in the structures called Grana.
<h3>What is the process of photosynthesis and where does it take place?</h3>
Photosynthesis takes place inside the chloroplasts that sit in the mesophyll of the leaves. The thylakoids sit inside the chloroplast and they Have chlorophyll which absorbs the different colours of the light range to create energy.
Grana are membrane-bound sacs called as thylakoids which are present within the chloroplasts. These structures harvest the light called as photosystems; a chloroplast has around a various number of photosystems.
The photosystems have pigment molecules. In the plants, chlorophyll is one of the primary pigment which actively takes part in the process of light reactions like photosynthesis, but the accessory pigment like carotenoids are also present. These pigments allow the plant to absorb a wide range of spectrum than wavelengths of the light is absorbed by chlorophyll.
In the light-dependent reactions, the light energy is converted into NADPH and ATP.
Thus, Photosynthesis takes place inside the chloroplasts that sit in the mesophyll of the leaves.
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