Chemistry for Biologists

Photosynthesis

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

 

RSC