6.3 The Calvin cycle reactions involve several events.

CO2 is taken up by one of the substrates in the cycle. 

ATP and NADPH from the light reactions change CO2 into a carbohydrate (sugar). 

 

 

 

The Importance of the Calvin Cycle

The Calvin cycle

Concentration of carbon dioxide and temperature can increase the rate of photosynthesis

In the graph above, ppm means "parts per million" and is a measurement of the concentration of carbon dioxide in a special greenhouse where the plants were grown.

 

 Toggle open/close quiz question

According to the graph above, which is true about the rate of photosyntheisis?
    a.it speeds up and then slows down when light intensity gets higher.
    b.It is lowest when temperature and carbon dioxide concentrations are high.
    c.It is highest when temperature and carbon dioxide concentrations are high.
    d.It is highest when temperatures are lower and carbondioxide is higher.

 

 

 

Extra Help

 

More about early research of the Calvin cycle