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Biochemistry in Anatomy and Physiology: Help and Review Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. Why must pyruvate be reduced during fermentation?

Question 2 2.

Which of the following statements about FAD are true?

I. FAD plays a role in cellular respiration.

II. FADH2 is the oxidized form of FAD.

III. FAD can accept electrons.

Question 3 3. Of the following statements about fermentation, which one is TRUE?

Question 4 4. Where does the Krebs cycle occur?

Question 5 5. Which of the following steps of the electron transport chain directly drives ADP phosphorylation?

Page 2

Question 6 6. Which of the following is true about enzymes?

Question 7 7.

Which of the following statements about NAD are FALSE?

I. It is the major energy currency used in all cellular processes.

II. It can be used to temporarily store energy harvested during cellular respiration.

III. It can be used to make ADP.

Question 8 8. If reactants can interact to form products, but the products can also react to form the reactants, which biochemical reaction took place?

Question 9 9. A non-substrate molecule binds to an enzyme. Now the enzyme is unable to bind its substrate. What has likely occurred?

Question 10 10. Cellular respiration includes a step that converts pyruvate into Acetyl coA. Acetyl coA is also known as Coenzyme A. This implies that Acetyl coA _____.

Page 3

Question 11 11. What product from the Krebs cycle is waste for your body?

Question 12 12. When games and competitions are held at high altitudes, athletes must specially train to postpone their cells from switching to

Question 13 13. When amino acids combine to form a protein molecule, which biochemical reaction took place?

Question 14 14. What is the electron carrier in glycolysis that becomes reduced?

Question 15 15. Iron binds tightly to the heme group in the protein hemoglobin. What type(s) of helper molecule would this be considered?

Page 4

Question 16 16. The change in overall energy of a reaction is

Question 17 17. How many molecules of ATP are produced from one molecule of glucose during glycolysis?

Question 18 18. How is oxygen used in cellular respiration?

Question 19 19. What type of bond is often formed between prosthetic groups and proteins?

Question 20 20. What is induced fit?

Page 5

Question 21 21. Which step of cellular respiration provides the greatest number of ATP molecules?

Question 22 22. Which of the following is NOT true of enzyme regulation?

Question 23 23. In order to produce the most ATP, an organism needs to perform

Question 24 24. Which of the following produces the MOST ATP?

Question 25 25. In order to perform glycolysis, which of the following needs to happen?

Page 6

Question 26 26. Which of the following correctly represents the electron carriers that are reduced during the citric acid (Krebs) cycle?

Question 27 27. An activator could have the following effect on an enzyme:

Question 28 28. What follows glycolysis in cellular respiration?

Question 29 29. When living cells break down molecules of food, energy is

Question 30 30. What is the final product from the intermediate step between glycolysis and the citric acid cycle?

Biochemistry in Anatomy and Physiology: Help and Review Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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