Quiz SBI 4UI Ready?

1. Adding 1 ATP to glucose changes it into;

Glucose 6 phosphate (or G6P) Glucose 6 phosphate (or G6P)

2. How many molecules of ATP are required for activation?

2

3. What type of a redox agent is NAD?

Oxidizing agent Oxidizing agent

4. How many molecules of BPG are produced per molecule of glucose?

2

5. What happens when PEP is changed to Pyruvate?

1 ATP is produced 1 ATP is produced

6. The name given the process for producing ATP in glycolysis?

Substrate level phosphorylation Substrate level phosphorylation

7. What is pyruvate converted to if anaerobic respiration continues?

Lactic acid Lactic acid

8. Why would pyruvate not enter the mitochondria for Aerobic Resp?

Lack of Oxygen Lack of Oxygen

9. What reduces the pyruvate to lactic acid?

NADH NADH

10. State 3 things that happen to pyruvate before the Co-A attaches

(1 mark each) (1 mark each) Decarboxylation Decarboxylation Hydration Hydration Oxidation Oxidation

11. What is Co-A?

It is a co-enzyme It is a co-enzyme

12. What does Co-A do?

Carries the Acetate molecule into the Krebs Cycle Carries the Acetate molecule into the Krebs Cycle

13. What is the function of the co- enzymes in the Krebs Cycle?

To carry energy (electrons and H) to the ETC To carry energy (electrons and H) to the ETC

14.What other Co-enzymes are involved in the Krebs Cycle?

(1 mark each) (1 mark each) NAD NAD FAD FAD

15. State the 3 molecules that are oxidized by NAD in Krebs Cycle.

(1 mark each) (1 mark each) Citric acid Citric acid α-Ketoglutaric acid α-Ketoglutaric acid Malic Malic

16. What is the 4 th molecule oxidized in Krebs Cycle?

Succinic acid Succinic acid

17. Which molecule in Krebs Cycle is hydrated?

Fumaric acid Fumaric acid

18. Which molecule is decarboxylated in Krebs Cycle?

Citric acid Citric acid

19. Which molecule is substrate level phosphorylated?

α-Ketoglutaric acid α-Ketoglutaric acid

20. What enzyme accepts electrons/H from NADH for ETC?

NAD Dehy (dehydrogenase) NAD Dehy (dehydrogenase)

21. What do electrons only one way in the ETC?

Increasing electronegativity of the molecules Increasing electronegativity of the molecules

22. What does the NAD Dehy, Cyt b-c1 and Cyt oxidase have in common?

Each molecule passes protons into the intermembrane space Each molecule passes protons into the intermembrane space

23. Why does FADH only result in 2 ATPs produced and NADH in 3?

FADH misses NAD Dehy FADH misses NAD Dehy

24. Name the process by which protons produce ATP

Chemiosmosis Chemiosmosis

25. What happens to the electrons at the end of the ETC?

They’re combined with H using Cyt oxidase top produce water They’re combined with H using Cyt oxidase top produce water

That’s all folks! The total is 30 The total is 30