Chemistry for Biologists

Respiration

1. The Krebs cycle and oxidative phosphorylation take place in:
mitochondria
cytoplasm
vacuole
chloroplasts
2. Glycolysis takes place in:
vacuole
mitochondria
chloroplasts
cytoplasm
3. The net number of ATP molecules produced when one molecule of glucose passes through the anaerobic stage of respiration is:
2
3
4
1
4. When one molecule of high energy NAD enters the electron transfer chain during oxidative phosphorylation, the number of ATP molecules formed is:
3
4
2
1
5. If one molecule of glucose is completely oxidised to H2O and CO2, a total of:
34 molecules of ATP may be produced
36 molecules of ATP may be produced
38 molecules of ATP may be produced
32 molecules of ATP may be produced
6. The stage of respiration in which glucose is converted to pyruvate is:
the Krebs cycle
phosphorylation
oxidative phosphorylation
the electron transport chain
7. The stage of respiration during which carbon dioxide is evolved is:
the Krebs cycle
phosphorylation
oxidative phosphorylation
the electron transport chain
8. The stage of respiration during which water is evolved is:
the Krebs cycle
the electron transport chain
oxidative phosphorylation
phosphorylation
9. During anaerobic respiration in yeast, glucose is converted to:
water and carbon dioxide
ethanol and carbon dioxide
oxygen
oxygen and water
10. Energy to convert glucose to hexose bisphosphate in phosphorylation is provided by:
NAD
AMP
ADP
ATP

 

RSC