Question

Write three differences between light reaction and dark reaction of photosynthesis

Answer 1

Dark reactions make use of these organic energy molecules (ATP and NADPH). This reaction cycle is also called Calvin Benison Cycle, and it occurs in the stroma. ATP provides the energy while NADPH provides the electrons required to fix the CO2(carbon dioxide) into carbohydrates. So the dark and light and dark reaction difference .

Answer 2

NCERT based Answer for Class 11 Biology Students

Light Reaction:

 Occurs in thylakoid.

 Directly dependent on light.

 Produces ATP and NADPH.

 Oxygen is evolved.

Dark Reactions:

 Occurs in matrix of chloroplast.

 Depend on products of light reactions.

 Consume ATP and NADPH.

 Glucose is end product.

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