C 485 Quiz 3
Name___________________
Legible please!
Each problem is worth ½ pt. There is no partial credit.
1) Draw the reaction for the transformation catalyzed by rubisco. Structures please
2) Draw the unwanted competing side reaction catalyzed by rubisco (mechanism
unnecessary). Structures please.
3) What is the ultimate fate of the carbons in the molecules produced in this unwanted
process described in question 2?.
4) What are the three stages of the Calvin cycle?
5) What are the three enzymes of the Calvin cycle that are responsible for forming
carbon-carbon bonds?
6) Draw the reaction of the Calvin cycle that generates a 7 carbon sugar (structures
please).
7) List three substances that regulate the activity of the Calvin cycle.
8) How does the pentose phosphate pathway respond to a cell’s maximal requirement for
NADPH?
9) What are two phases of the pentose phosphate pathway? Which of these phases is
most similar to the Calvin cycle?
10) What are the two most important products of the pentose phosphate pathway? (name
or structure)