The products of photosynthesis are glucose and oxygen. Although the hydrogen atoms from the water molecules are used in the photosynthesis reactions, the oxygen molecules are released as oxygen gas (O2).

Carbon dioxide, water, and the sun’s energy are necessary for the chemical reactions of photosynthesis. The products of photosynthesis are glucose and oxygen.

The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH. In plants, the light reactions take place in the thylakoid membranes of organelles called chloroplasts.

What are the end products of light reactions?

• Hint: The process of using the energy in sunlight to make food (glucose) is known as photosynthesis.
• Complete answer:
• Therefore, the end products are ATP and NADPH.
• Note: The ATP and NADPH from the light-dependent reactions are used to make sugars in the Calvin cycle.

Noncyclic photophosphorylation involves both Photosystem I and Photosystem II and produces ATP and NADPH.

The immediate products of one turn of the Calvin cycle are 2 glyceraldehyde-3-phosphate (G3P) molecules, 3 ADP, and 2 NADP+. (ADP and NADP+ are not really “products.” They are regenerated and later used again in the Light-dependent reactions). Each G3P molecule is composed of 3 carbons.

The Calvin cycle uses 18 ATP and 12 NADPH molecules to produce one glucose molecule.

The three types of plants are differentiated on the basis that in C3 plants the first stable product of photosynthesis is 3-carbon compound (phosphoglyceric acid) and in C4 plants, 4-carbon compound (oxaloacetic acid or malic acid) is the first stable compound.

However, 3-PGA increases the apparent affinity of ATP, and Pi reverses the effect, suggesting that in barley endosperm the important effect of 3-PGA or Pi is either increasing or decreasing the apparent affinity of the substrate ATP.

15. How can cells store the sugar that is produced in photosynthesis? It is stored as starch.

In the second stage of the Calvin cycle, the 3-PGA molecules created through carbon fixation are converted into molecules of a simple sugar – glyceraldehyde-3 phosphate (G3P). This stage uses energy from ATP and NADPH created in the light-dependent reactions of photosynthesis.