Write the two main phases of photosynthesis.
Answers
Answer:
Photosynthesis takes place in two sequential stages: The light-dependent reactions; The light-independent reactions, or Calvin Cycle.
Answer:
The process of photosynthesis occurs in two phases – the light reactions and the dark reactions.
Light reactions – As the name suggests, this reaction takes place in the presence of light. Light energy is absorbed by chlorophyll molecules and is utilised for splitting water molecules into hydrogen and oxygen. Additionally in this phase, assimilatory power in the form of ATP and NADPH2 are produced.
Light reactions occur in the membranes of thylakoids.
Dark reactions – This reaction does not require direct light and occurs in the stroma of chloroplasts. During this phase, ATP and NADPH2 (formed during light reactions) are utilised for the reduction of CO2 to carbohydrates (food).
Explanation: