Answer:
Explanation:In the light reactions of photosynthesis, several products are produced. The main molecules that leave the light reactions and go on to the next stage of photosynthesis, known as the Calvin cycle or dark reactions, are:
1. ATP (adenosine triphosphate): ATP is a molecule that stores and transports energy within cells. It is produced during the light reactions through a process called photophosphorylation. ATP provides the energy necessary for the Calvin cycle to occur.
2. NADPH (nicotinamide adenine dinucleotide phosphate): NADPH is an electron carrier molecule that is also produced during the light reactions. It carries high-energy electrons that are needed in the Calvin cycle to convert carbon dioxide into glucose.
These two molecules, ATP and NADPH, are the primary products that leave the light reactions and are utilized in the Calvin cycle. The ATP provides the energy required for chemical reactions, while NADPH supplies the reducing power necessary for the conversion of carbon dioxide into glucose.
In summary, the main products that leave the light reactions of photosynthesis are ATP and NADPH. These molecules play crucial roles in powering the Calvin cycle and converting carbon dioxide into glucose, the ultimate product of photosynthesis.