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The oxygen released during photosynthesis comes from……
a) water                                 
b) carbon dioxide
c) both a and b
d) none of them

a

The plants in which only calvin cycle occurs during dark reaction are called….
a) C4 plants                
b) C3 plants
c) C6 plants                
d) both a and b

b

Which of the following acts as carbon dioxide acceptor?
a) G3P                        
b) RuBP
c) NADP+                  
d) water

b

Five molecules of G3P reproduce……molecules of RuBP.
a) three          
b) five 
c) two 
d) one

a

Chemically respiration is a ……reaction.
a) displacement          
b) decomposition
c) electrolysis             
d) redox

d

During aerobic respiration in prokaryotes, how many ATPs are released?
a) 36   
b) 2                 
c) 38               
d) 40

c

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