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BIOCHEM MODULE 8 EXAM QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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BIOCHEM MODULE 8 EXAM QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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BIOCHEM MODULE 8 EXAMQUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
true - ANSWER T/F: The majority of the reactions of the urea cycle occur in the cytosol.
false - ANSWER T/F: The majority of the reactions of the urea cycle occur in the mitochondrial matrix.
false - ANSWER T/F: FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to the
ETC.
2.5 ATP per NADH - 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 - ANSWER How many ATP molecules does FADH2 yield after donating electrons and
hydrogen atoms to the electron transfer chain (ETC)?
true - ANSWER T/F: ATP is invested in the urea cycle.
3 - ANSWER How many total ATP are invested in the urea cycle?
false - ANSWER T/F: There are 5 complexes associated with the ETC.
4 - ANSWER How many complexes are associated with the ETC?
false - ANSWER T/F: In the production of ATP via ATP synthase, the H+ ions move from the mitochondrial
matrix to the intermembrane space.
true - ANSWER T/F: In the production of ATP via ATP synthase, the H+ ions move from the
intermembrane space to the mitochondrial matrix.
, 4 - ANSWER The urea cycle involves ___ reactions (only those in the cyclic portion of the process).
ornithine, arginine, and aspartate - ANSWER What amino acids are involved in the urea cycle?
malate - ANSWER Fumarate reenters the mitochondrion as
ability to hydrogen bonds with water and its high density of nitrogen in a small molecule - ANSWER Urea
is useful for excreting nitrogen from cells due to its
fumarate - ANSWER Which component of the urea cycle is also a member of the CAC?
NH4+ (amine group) - ANSWER Oxidative deamination results in the removal of ___ from amino acids.
urea - ANSWER What is the following chemical species?
ammonium (NH4+) - ANSWER What is the following chemical species?
aspartate - ANSWER What amino acid is the following structure?
arginine - ANSWER What amino acid is the following structure?
ornithine - ANSWER What amino acid is the following structure?
complex I - ANSWER NADH donates electrons and H+ to complex
complex II - ANSWER FADH2 donates electrons and H+ to complex
complexes I, III, IV - ANSWER Which of the ETC complexes pump H+?
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