The end product of the dark reaction, also known as the Calvin cycle, is glucose.
This sugar molecule is a vital source of energy for the plant and is used for various processes, including growth, reproduction, and respiration.
The dark reaction takes place in the stroma of the chloroplast and uses the energy stored in ATP and NADPH produced during the light-dependent reactions to convert carbon dioxide into glucose.
The Calvin cycle involves a series of complex enzymatic reactions, ultimately leading to the production of glucose.
Here's a simplified breakdown of the process:
- Carbon dioxide fixation: Carbon dioxide from the atmosphere is incorporated into an organic molecule called RuBP.
- Reduction: The carbon atoms in RuBP are reduced using electrons from NADPH, forming glucose.
- Regeneration: RuBP is regenerated to continue the cycle.
The glucose produced in the dark reaction is a fundamental building block for plants, serving as the foundation for their energy and growth.
