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biochem module 8 questions and answers rated A+ 2024/2025
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biochem module 8True or False: The majority of reactions of the urea cycle occur within the cytosol. - ANStrue
True or False: FADH2 yields 2.Five ATP molecules after donating electrons and hydrogen
atoms to the electron switch chain (ETC). - ANSFalse
True or False: ATP is invested within the urea cycle. - ANSTrue
True or False: There are five complexes associated with the ETC. - ANSFalse
True or False: In the manufacturing of ATP through ATP synthase, the H+ ions circulate from
the mitochondrial matrix to the intermembrane space. - ANSFalse
The urea cycle entails _________ reactions (only the ones inside the cyclic portion of the
method).
-4
- five
-6
- eight
- 10 - ANS- four
Which amino acids are involved within the urea cycle?
A. Ornithine
B. Aspartate
C. Threonine
D. Both A and B
E. Both A and C - ANSD. Both A and B
Fumarate reenters the mitochondrion as which of the subsequent molecules?
- Malate
- Ornithine
- Citrulline
- Fumarase
- Ammonia - ANS- Malate
Urea is beneficial for excreting nitrogen from cells because of its:
- Ability to hydrogen bond with water
- Ability to form ions
- Large size
- Low melting factor
, - None of those - ANS- Ability to hydrogen bond with water
Which factor of the urea cycle is likewise a member of the CAC?
- Fumarate
- Malate
- Acetyl-CoA
- Citrate
- None of the above - ANS- Fumarate
Oxidative deamination consequences within the elimination of __________ from amino
acids.
A. N2
B. NH4+
C. NO2
D. NH2
E. NH3 - ANSB. NH4+
The following chemical species is __________. - ANSUrea
NADH donates electrons and H+ to complex ______.
I
II
III
IV
V - ANSI
Which of the ETC complexes do pump H+ ions?
Complex I
Complex II
Complex III
Both A and B
Both A and C - ANSBoth A and C
What protein shuttles electrons from Complex III to Complex IV?
- NADH dehydrogenase
- Arginase
- Fumarase
- Cytochrome B
- Cytochrome C - ANS- Cytochrome C
What molecule transfers electrons and H+ from each Complex I and Complex II to Complex
III?
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