Calvin Cycle
Asked by Mohammed Irfanullah · 1 year ago
Describe the main stages of the Calvin cycle in photosynthesis.
1 Answer
The Calvin cycle, also known as the light-independent reactions, consists of three main stages:
1. Carbon fixation: COâ‚‚ is added to a 5-carbon sugar (RuBP) by the enzyme RuBisCO, forming a 6-carbon compound that splits into two 3-carbon molecules.
2. Reduction: The 3-carbon molecules are reduced using ATP and NADPH from the light-dependent reactions, forming G3P (a 3-carbon sugar).
3. Regeneration: Some G3P molecules are used to regenerate RuBP, completing the cycle.
This process occurs in the stroma of chloroplasts and produces glucose and other organic compounds used by plants.
1. Carbon fixation: COâ‚‚ is added to a 5-carbon sugar (RuBP) by the enzyme RuBisCO, forming a 6-carbon compound that splits into two 3-carbon molecules.
2. Reduction: The 3-carbon molecules are reduced using ATP and NADPH from the light-dependent reactions, forming G3P (a 3-carbon sugar).
3. Regeneration: Some G3P molecules are used to regenerate RuBP, completing the cycle.
This process occurs in the stroma of chloroplasts and produces glucose and other organic compounds used by plants.
NEET Faculty · 1 year ago
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