Chemistry for Biologists

Photosynthesis

1. Phosphoglyceric acid (PGA) is formed when carbon dioxide is fixed onto the 5C compound:
edenosine triphosphate
nicotinamide adenine dinucleotide phosphate
ribulose bisphosphate
adenosine monophosphate
2. The first stable product of the Calvin Cycle is:
NAPD
ADP
PGA
ATP
3. The greenhouse effect is likely to:
increase the rate of photosynthesis globally
decrease the rate of photosynthesis globally
have no effect on the rate of photosynthesis globally
reduce the rate at which carbon is incorporated into carbohydrate globally
4. If light intensity increases in an atmosphere of excess carbon dioxide, the limiting factor on the rate of photosynthesis is most likely to be:
temperature
carbon dioxide concentration
light intensity
chlorophyll type
5. In photosynthesis, oxygen is produced during:
the light-dependent stage
non-cyclic phosphorylation
cyclic phosphorylation
the light reactions
6. In photosynthesis, carbon dioxide is fixed during:
cyclic phosphorylation
the light-independent stage
the light-dependent stage
non-cyclic phosphorylation
7. In photosynthesis, excited electrons leave a chlorophyll molecule during:
the light-independent stage
the light-dependent stage
non-cyclic phosphorylation
cyclic phosphorylation
8. In the light-independent stage carbohydrate is synthesized from:
ATP
PGA
ADP
NAPD
9. The two principal stages of photosynthesis are:
the light-dependent and light-independent reactions
photolysis and ATP synthesis
photosystem I and photosystem II
cyclic and non-cyclic phosphorylation
10. In photosynthesis, carbohydrates are produced during:
non-cyclic phosphorylation
cyclic phosphorylation
the light-independent stage
the light-dependent stage

 

RSC