Name: 
 

FQQ 10.3-4


 1. 
The Calvin cycle is
a.
catabolic
b.
anabolic
 

 2. 
The three phases of the Calvin cycle, in order (starting with the incorporation of CO2) are:
a.
reduction, regeneration of CO2 acceptor, carbon fixation
b.
carbon fixation, regeneration of CO2 acceptor, reduction
c.
carbon fixation, reduction, regeneration of CO2 acceptor
d.
regeneration of CO2 acceptor, reduction, carbon fixation
 

 3. 
Which stage of the Calvin cycle incorporates CO2 into an organic molecule (a 5-carbon sugar called RuBP)?
a.
reduction
c.
regeneration of CO2 acceptor
b.
carbon fixation
d.
this happens during all three stages
 

 4. 
What is photorespiration?
a.
the incorporation of oxygen into the Calvin cycle instead of carbon dioxide
b.
the breakdown of glucose using light energy to produce ATP
c.
the stage of photosynthesis that produces the largest amount of ATP
d.
the uptake of oxygen through the plants stomata in response to light
 

 5. 
Photorespiration
a.
decreases the efficiency of photosynthesis
c.
doesn’t produce any sugar
b.
uses ATP
d.
all of the above
 



 
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