During these initial reactions, water is used and oxygen<span> is released. The energy from sunlight is converted into a small amount of </span>ATP<span> and an energy carrier called </span>NADPH<span>. Together with </span>carbon dioxide<span>, these are used to make </span>glucose<span> (</span>sugar<span>) through a process called the Calvin Cycle.</span>
ATP, NADPH and oxygen are the products of light reaction.
Explanation:
Light reaction occurs in the presence of sunlight and is the first phase of photosynthesis reaction. Chlorophyll molecule absorbs the energy from the sunlight and later uses in the formation of ATP and NADPH.
The water is used up during the reaction. The light energy is used to obtain ATP, NADPH and oxygen. These products of light reaction are used further by plants during dark reaction of photosynthesis.
