Page 125 - Demo 1

Regeneraon requires ATP and involves a complex network of
reacons. At the end of the regeneraon, the net gain of the set of
reacons is one G3P molecule per 3 carbon dioxide molecules.
In order for one G3P to exit the Calvin cycle (and go towards glucose
synthesis), three CO2 molecules must enter the cycle, providing three
new atoms of fixed carbon. When three CO2 molecules enter the
cycle, six G3P molecules are made. One exits the cycle and is used to
make glucose, while the other five must be recycled to regenerate
three molecules of the RuBP acceptor.

Figure 55. Stages of the Calvin Cycle
Source: https://online.science.psu.edu/sites/default/files/biol110/Tutorial29_Fig2_29.jpg

Learning Tasks and A ssesment

Acvity 1. Label the diagram below to provide relevant informaon. Then,
summarize the important events in photosynthesis.

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