Module 8 Biochemistry Exam Prep – Practice Q&A (2026)

Module 8 Biochemistry Exam Prep –
Practice Q&A (2026)




true - correct answersT/F: The majority of the reactions of the urea cycle occur in the cytosol.
c c c c c c c c c c c c c c c c




false - correct answersT/F: The majority of the reactions of the urea cycle occur in the mitochondrial matrix.
c c c c c c c c c c c c c c c c c




false - correct answersT/F: FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to
c c c c c c c c c c c c c c c c




the ETC. c




2.5 ATP per NADH - correct answersHow many ATP molecules does NADH yield after donating electrons and
c c c c c c c c c c c c c c c c c




hydrogen atoms to the electron transfer chain (ETC)?
c c c c c c c




1.5 ATP per FADH2 - correct answersHow many ATP molecules does FADH2 yield after donating electrons and
c c c c c c c c c c c c c c c c c




hydrogen atoms to the electron transfer chain (ETC)?
c c c c c c c




true - correct answersT/F: ATP is invested in the urea cycle.
c c c c c c c c c c




3 - correct answersHow many total ATP are invested in the urea cycle?
c c c c c c c c c c c c

, false - correct answersT/F: There are 5 complexes associated with the ETC.
c c c c c c c c c c c




4 - correct answersHow many complexes are associated with the ETC?
c c c c c c c c c c




false - correct answersT/F: In the production of ATP via ATP synthase, the H+ ions move from the
c c c c c c c c c c c c c c c c c c




mitochondrial matrix to the intermembrane space. c c c c c




true - correct answersT/F: In the production of ATP via ATP synthase, the H+ ions move from the
c c c c c c c c c c c c c c c c c c




intermembrane space to the mitochondrial matrix. c c c c c




4 - correct answersThe urea cycle involves ___ reactions (only those in the cyclic portion of the process).
c c c c c c c c c c c c c c c c c




ornithine, arginine, and aspartate - correct answersWhat amino acids are involved in the urea cycle?
c c c c c c c c c c c c c c




malate - correct answersFumarate reenters the mitochondrion as
c c c c c c c




ability to hydrogen bonds with water and its high density of nitrogen in a small molecule - correct answersUrea
c c c c c c c c c c c c c c c c c c c




is useful for excreting nitrogen from cells due to its
c c c c c c c c c




fumarate - correct answersWhich component of the urea cycle is also a member of the CAC?
c c c c c c c c c c c c c c c




NH4+ (amine group) - correct answersOxidative deamination results in the removal of ___ from amino acids.
c c c c c c c c c c c c c c c




urea - correct answersWhat is the following chemical species?
c c c c c c c c




ammonium (NH4+) - correct answersWhat is the following chemical species? c c c c c c c c c




aspartate - correct answersWhat amino acid is the following structure?
c c c c c c c c c