BIOCHEM MODULE 8 EXAM
LATEST EDITION 100%
VERIFIED CORRECT ANSWERS
2025/2026
true - ANS-T/F: The majority of the reactions of the urea cycle occur in the cytosol.
false - ANS-T/F: The majority of the reactions of the urea cycle occur in the mitochondrial matrix.
false - ANS-T/F: FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to the
ETC.
2.5 ATP per NADH - ANS-How many ATP molecules does NADH yield after donating electrons and
hydrogen atoms to the electron transfer chain (ETC)?
1.5 ATP per FADH2 - ANS-How many ATP molecules does FADH2 yield after donating electrons and
hydrogen atoms to the electron transfer chain (ETC)?
true - ANS-T/F: ATP is invested in the urea cycle.
3 - ANS-How many total ATP are invested in the urea cycle?
false - ANS-T/F: There are 5 complexes associated with the ETC.
4 - ANS-How many complexes are associated with the ETC?
, false - ANS-T/F: In the production of ATP via ATP synthase, the H+ ions move from the mitochondrial
matrix to the intermembrane space.
true - ANS-T/F: In the production of ATP via ATP synthase, the H+ ions move from the intermembrane
space to the mitochondrial matrix.
4 - ANS-The urea cycle involves ___ reactions (only those in the cyclic portion of the process).
ornithine, arginine, and aspartate - ANS-What amino acids are involved in the urea cycle?
malate - ANS-Fumarate reenters the mitochondrion as
ability to hydrogen bonds with water and its high density of nitrogen in a small molecule - ANS-Urea is
useful for excreting nitrogen from cells due to its
fumarate - ANS-Which component of the urea cycle is also a member of the CAC?
NH4+ (amine group) - ANS-Oxidative deamination results in the removal of ___ from amino acids.
urea - ANS-What is the following chemical species?
ammonium (NH4+) - ANS-What is the following chemical species?
aspartate - ANS-What amino acid is the following structure?
arginine - ANS-What amino acid is the following structure?
ornithine - ANS-What amino acid is the following structure?
complex I - ANS-NADH donates electrons and H+ to complex
LATEST EDITION 100%
VERIFIED CORRECT ANSWERS
2025/2026
true - ANS-T/F: The majority of the reactions of the urea cycle occur in the cytosol.
false - ANS-T/F: The majority of the reactions of the urea cycle occur in the mitochondrial matrix.
false - ANS-T/F: FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to the
ETC.
2.5 ATP per NADH - ANS-How many ATP molecules does NADH yield after donating electrons and
hydrogen atoms to the electron transfer chain (ETC)?
1.5 ATP per FADH2 - ANS-How many ATP molecules does FADH2 yield after donating electrons and
hydrogen atoms to the electron transfer chain (ETC)?
true - ANS-T/F: ATP is invested in the urea cycle.
3 - ANS-How many total ATP are invested in the urea cycle?
false - ANS-T/F: There are 5 complexes associated with the ETC.
4 - ANS-How many complexes are associated with the ETC?
, false - ANS-T/F: In the production of ATP via ATP synthase, the H+ ions move from the mitochondrial
matrix to the intermembrane space.
true - ANS-T/F: In the production of ATP via ATP synthase, the H+ ions move from the intermembrane
space to the mitochondrial matrix.
4 - ANS-The urea cycle involves ___ reactions (only those in the cyclic portion of the process).
ornithine, arginine, and aspartate - ANS-What amino acids are involved in the urea cycle?
malate - ANS-Fumarate reenters the mitochondrion as
ability to hydrogen bonds with water and its high density of nitrogen in a small molecule - ANS-Urea is
useful for excreting nitrogen from cells due to its
fumarate - ANS-Which component of the urea cycle is also a member of the CAC?
NH4+ (amine group) - ANS-Oxidative deamination results in the removal of ___ from amino acids.
urea - ANS-What is the following chemical species?
ammonium (NH4+) - ANS-What is the following chemical species?
aspartate - ANS-What amino acid is the following structure?
arginine - ANS-What amino acid is the following structure?
ornithine - ANS-What amino acid is the following structure?
complex I - ANS-NADH donates electrons and H+ to complex
