The second stage of photosynthesis, which takes place in the stroma of the chloroplast, can occur without the presence of sunlight. In this stage, known as the Calvin Cycle, carbon molecules from CO2 are fixed into glucose (C6H12O2). The reactions of the Calvin Cycle is as follows:
1. A five-carbon sugar molecule called ribulose bisphosphate, or RuBP, is the acceptor that binds CO2 dissolved in the stroma. This process, called CO2 fixation, is catalyzed by the enzyme RuBP carboxylase, forming an unstable six-carbon molecule. This molecule quickly breaks down to give two molecules of the three-carbon 3-phosphoglycerate (3PG), also called phosphoglyceric acid (PGA).
2. The two 3PG molecules are converted into glyceraldehyde 3-phosphate (G3P, a.k.a. phosphoglyceraldehyde, PGAL) molecules, a three-carbon sugar phosphate, by adding a high-energy phosphate group from ATP, then breaking the phosphate bond and adding hydrogen from NADPH + H+.
Three turns of the cycle, using three molecules of CO2, produces six molecules of G3P. However, only one of the six molecules exits the cycle as an output, while the remaining five enter a complex process that regenerates more RuBP to continue the cycle. Two molecules of G3P, produced by a total of six turns of the cycle, combine to form one molecule of glucose.
Combines with Ribose Bis-Phosphate under enyme rubisco.
It becomes a carbohydrate
The stroma
The production of glucose takes place during the light independent reactions (Calvin cycle) in the stroma of the chloroplast.
The light reaction happens in the thylakoid membrane and converts light energy to chemical energy.The dark reaction takes place in the stroma within the chloroplast, and converts CO2 to sugar.
It happens in stroma.Dark reaction makes sugar.
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The stroma
The production of glucose takes place during the light independent reactions (Calvin cycle) in the stroma of the chloroplast.
It takes place in the stoma
The light-independent reaction occurs within the stroma or cytosol-like region of the chloroplast.
The light reaction happens in the thylakoid membrane and converts light energy to chemical energy.The dark reaction takes place in the stroma within the chloroplast, and converts CO2 to sugar.
It happens in stroma.Dark reaction makes sugar.
space inside sack and some other stuff jeez these losers are idiots losers
The Calvin cycle takes place in the stroma of chloroplasts.
CO2 is in the air and as the air moves so does the CO2 in it.
In the stroma
They are called stroma.
Stroma