Photosynthesis is a process by which plants, algae, and some bacteria convert light energy into chemical energy. The process of photosynthesis can be divided into two main stages - light-dependent reactions and light-independent reactions. Light-dependent reactions occur in the thylakoid membrane of chloroplasts and involve the absorption of light energy by chlorophyll molecules. During these reactions, energy is converted into chemical energy in the form of ATP and NADPH, and oxygen is released as a byproduct.

Not a product of light reaction

NADH is not a product of light reaction of photosynthesis. The correct answer is option B. NADH is a product of cellular respiration, which occurs in the mitochondria of eukaryotic cells. In photosynthesis, the products of the light-dependent reactions are ATP, NADPH, and oxygen.

Products of light reaction

The products of light reaction are:

1. ATP - Adenosine triphosphate (ATP) is a molecule that stores energy in cells. During photosynthesis, ATP is produced by the transfer of energy from light to chlorophyll molecules.

2. NADPH - Nicotinamide adenine dinucleotide phosphate (NADPH) is a molecule that carries high-energy electrons. During photosynthesis, NADPH is produced by the transfer of electrons from water molecules to chlorophyll molecules.

3. Oxygen - Oxygen is a byproduct of photosynthesis. It is produced when water molecules are split during the light-dependent reactions.

In conclusion, NADH is not a product of light reaction of photosynthesis. The products of light-dependent reactions are ATP, NADPH, and oxygen.

In light reaction the only ptoduct is atp bcoz light reaction occurs in thylakoid membrane where nadp reductase,enzyme is not lresent for the formation of nadh hence the only product is atp and p'll z read mcert deeply it is given in ncert book