Oxidative Phosphorylation – Section 1

11. Which of the following is the correct sequence of processes in the oxidation of glucose?

A. Krebs cycle – glycolysis – electron transport
B. Glycolysis – Krebs cycle – eletron transport
C. Electron transport – Krebs cycle – glycolysis
D. Krebs cycle – electron transport – glycolysis

Correct Answer: B. Glycolysis – Krebs cycle – eletron transport

12. In electron transport, electrons ultimately pass to

A. ADP
B. cytochrome b
C. oxygen
D. none of these

Correct Answer: C. oxygen

13. The complete oxidation of glucose yields usable energy in the form of

A. FADH2
B. coenzyme A
C. ATP
D. pyruvic acid

Correct Answer: C. ATP

14. During electron transport, protons are pumped out of the mitochondrion at each of the major sites except for

A. complex I
B. complex II
C. complex III
D. complex IV

Correct Answer: B. complex II

15. The aerobic breakdown of glucose known as respiration involves

A. electron transport phosphorylation
B. glycolysis
C. Krebs Cycle
D. all of the above

Correct Answer: D. all of the above

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