BIOCHEM MODULE 8 EXAM
1. true: T/F: The majority of the reactions of the urea cycle occur in the cytosol.
2. false: T/F: The majority of the reactions of the urea cycle occur in the mitochondrial matrix.
3. false: T/F: FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to the ETC.
4. 2.5 ATP per NADH: How many ATP molecules does NADH yield after donating electrons and hydrogen atoms
to the electron transfer chain (ETC)?
5. 1.5 ATP per FADH2: How many ATP molecules does FADH2 yield after donating electrons and hydrogen
atoms to the electron transfer chain (ETC)?
6. true: T/F: ATP is invested in the urea cycle.
7. 3: How many total ATP are invested in the urea cycle?
8. false: T/F: There are 5 complexes associated with the ETC.
9. 4: How many complexes are associated with the ETC?
10. false: T/F: In the production of ATP via ATP synthase, the H+ ions move from the mitochondrial matrix to the
intermembrane space.
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, 11. true: T/F: In the production of ATP via ATP synthase, the H+ ions move from the intermembrane space to the
mitochondrial matrix.
12. 4: The urea cycle involves reactions (only those in the cyclic portion of the process).
13. ornithine, arginine, and aspartate: What amino acids are involved in the urea cycle?
14. malate: Fumarate reenters the mitochondrion as
15. ability to hydrogen bonds with water and its high density of nitrogen in a
small molecule: Urea is useful for excreting nitrogen from cells due to its
16. fumarate: Which component of the urea cycle is also a member of the CAC?
17. NH4+ (amine group): Oxidative deamination results in the removal of from amino acids.
18. urea: What is the following chemical species?
19. ammonium (NH4+): What is the following chemical species?
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1. true: T/F: The majority of the reactions of the urea cycle occur in the cytosol.
2. false: T/F: The majority of the reactions of the urea cycle occur in the mitochondrial matrix.
3. false: T/F: FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to the ETC.
4. 2.5 ATP per NADH: How many ATP molecules does NADH yield after donating electrons and hydrogen atoms
to the electron transfer chain (ETC)?
5. 1.5 ATP per FADH2: How many ATP molecules does FADH2 yield after donating electrons and hydrogen
atoms to the electron transfer chain (ETC)?
6. true: T/F: ATP is invested in the urea cycle.
7. 3: How many total ATP are invested in the urea cycle?
8. false: T/F: There are 5 complexes associated with the ETC.
9. 4: How many complexes are associated with the ETC?
10. false: T/F: In the production of ATP via ATP synthase, the H+ ions move from the mitochondrial matrix to the
intermembrane space.
1/
10
, 11. true: T/F: In the production of ATP via ATP synthase, the H+ ions move from the intermembrane space to the
mitochondrial matrix.
12. 4: The urea cycle involves reactions (only those in the cyclic portion of the process).
13. ornithine, arginine, and aspartate: What amino acids are involved in the urea cycle?
14. malate: Fumarate reenters the mitochondrion as
15. ability to hydrogen bonds with water and its high density of nitrogen in a
small molecule: Urea is useful for excreting nitrogen from cells due to its
16. fumarate: Which component of the urea cycle is also a member of the CAC?
17. NH4+ (amine group): Oxidative deamination results in the removal of from amino acids.
18. urea: What is the following chemical species?
19. ammonium (NH4+): What is the following chemical species?
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