Biochem Module 8 Exam (Portage Learning
CHEM 210 Biochemistry) questions and
answers 2025\2026 A+ Grade
true
- correct answer T/F: The majority of the reactions of the urea cycle occur in the cytosol.
false
- correct answer T/F: The majority of the reactions of the urea cycle occur in the mitochondrial matrix.
false
- correct answer T/F: FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to
the ETC.
2.5 ATP per NADH
- correct answer How many ATP molecules does NADH yield after donating electrons and hydrogen
atoms to the electron transfer chain (ETC)?
1.5 ATP per FADH2
- correct answer How many ATP molecules does FADH2 yield after donating electrons and hydrogen
atoms to the electron transfer chain (ETC)?
true
- correct answer T/F: ATP is invested in the urea cycle.
3
- correct answer How many total ATP are invested in the urea cycle?
, false
- correct answer T/F: There are 5 complexes associated with the ETC.
4
- correct answer How many complexes are associated with the ETC?
false
- correct answer T/F: In the production of ATP via ATP synthase, the H+ ions move from the
mitochondrial matrix to the intermembrane space.
true
- correct answer T/F: In the production of ATP via ATP synthase, the H+ ions move from the
intermembrane space to the mitochondrial matrix.
4
- correct answer The urea cycle involves ___ reactions (only those in the cyclic portion of the process).
ornithine, arginine, and aspartate
- correct answer What amino acids are involved in the urea cycle?
malate
- correct answer Fumarate reenters the mitochondrion as
ability to hydrogen bonds with water and its high density of nitrogen in a small molecule
- correct answer Urea is useful for excreting nitrogen from cells due to its
fumarate
- correct answer Which component of the urea cycle is also a member of the CAC?
NH4+ (amine group)
- correct answer Oxidative deamination results in the removal of ___ from amino acids.
CHEM 210 Biochemistry) questions and
answers 2025\2026 A+ Grade
true
- correct answer T/F: The majority of the reactions of the urea cycle occur in the cytosol.
false
- correct answer T/F: The majority of the reactions of the urea cycle occur in the mitochondrial matrix.
false
- correct answer T/F: FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to
the ETC.
2.5 ATP per NADH
- correct answer How many ATP molecules does NADH yield after donating electrons and hydrogen
atoms to the electron transfer chain (ETC)?
1.5 ATP per FADH2
- correct answer How many ATP molecules does FADH2 yield after donating electrons and hydrogen
atoms to the electron transfer chain (ETC)?
true
- correct answer T/F: ATP is invested in the urea cycle.
3
- correct answer How many total ATP are invested in the urea cycle?
, false
- correct answer T/F: There are 5 complexes associated with the ETC.
4
- correct answer How many complexes are associated with the ETC?
false
- correct answer T/F: In the production of ATP via ATP synthase, the H+ ions move from the
mitochondrial matrix to the intermembrane space.
true
- correct answer T/F: In the production of ATP via ATP synthase, the H+ ions move from the
intermembrane space to the mitochondrial matrix.
4
- correct answer The urea cycle involves ___ reactions (only those in the cyclic portion of the process).
ornithine, arginine, and aspartate
- correct answer What amino acids are involved in the urea cycle?
malate
- correct answer Fumarate reenters the mitochondrion as
ability to hydrogen bonds with water and its high density of nitrogen in a small molecule
- correct answer Urea is useful for excreting nitrogen from cells due to its
fumarate
- correct answer Which component of the urea cycle is also a member of the CAC?
NH4+ (amine group)
- correct answer Oxidative deamination results in the removal of ___ from amino acids.
