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Chem 210 Module 8 Exam (2023/2024) Newest Questions and Correct Answers (Verified Answers), Exams of Biochemistry

Alverno CollegeBiochemistry

Chem 210 Module 8 Exam (2023/2024) Newest Questions and Correct Answers (Verified Answers) Chem 210 Module 8 Exam (2023/2024) Newest Questions and Correct Answers (Verified Answers) Chem 210 Module 8 Exam (2023/2024) Newest Questions and Correct Answers (Verified Answers)

Typology: Exams

2024/2025

Available from 04/15/2025

LENICIUS
LENICIUS 🇺🇸

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Chem 210 Module 8 Exam (2023/2024) Newest Questions
and Correct Answers (Verified Answers)
1. True or False: The majority of reactions of the urea cycle occur in
the cytosol.: true
2. True or False: FADH2 yields 2.5 ATP molecules after donating electrons
and hydrogen atoms to the electron transfer chain (ETC).: False
3. True or False: ATP is invested in the urea cycle.: True
4. True or False: There are five complexes associated with the ETC.: False
5. True or False: In the production of ATP via ATP synthase, the H+ ions
move from the mitochondrial matrix to the intermembrane space.: False
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Download Chem 210 Module 8 Exam (2023/2024) Newest Questions and Correct Answers (Verified Answers) and more Exams Biochemistry in PDF only on Docsity!

Chem 210 Module 8 Exam (2023/2024) Newest Questions

and Correct Answers (Verified Answers)

  1. True or False: The majority of reactions of the urea cycle occur in the cytosol.: true
  2. True or False: FADH2 yields 2.5 ATP molecules after donating electrons and hydrogen atoms to the electron transfer chain (ETC).: False
  3. True or False: ATP is invested in the urea cycle.: True
  4. True or False: There are five complexes associated with the ETC.: False
  5. True or False: In the production of ATP via ATP synthase, the H+ ions move from the mitochondrial matrix to the intermembrane space.: False
  1. The urea cycle involves reactions (only those in the cyclic por- tion of the process).
  • 4
  • 5
  • 6
  • 8
  • 10: - 4
  1. Which amino acids are involved in the urea cycle? A. Ornithine B. Aspartate C. Threonine D. Both A and B
  • None of these: - Ability to hydrogen bond with water
  1. Which component of the urea cycle is also a member of the CAC?
  • Fumarate
  • Malate
  • Acetyl-CoA
  • Citrate
  • None of the above: - Fumarate
  1. Oxidative deamination results in the removal of from amino acids. A. N B. NH4+ C. NO D. NH

Complex III Both A and B Both A and C: Both A and C

  1. What protein shuttles electrons from Complex III to Complex IV?
  • NADH dehydrogenase
  • Arginase
  • Fumarase
  • Cytochrome B
  • Cytochrome C: - Cytochrome C
  1. What molecule transfers electrons and H+ from both Complex I and Com- plex II to Complex III?
  • NADH

- FAD

  • Cytochrome C
  • Cytochrome B
  • CoQ: - CoQ
  1. In what portion of the mitochondrion does the CAC take place?
  • Matrix
  • Intermembrane space
  • Inner membrane
  • Outer membrane
  • Both B and C: - Matrix
  1. At which complex does the following reaction take
  • From outside of the cell to the matrix: - From the matrix to the intermembrane space
  1. Energy released is utilized for the synthesis of ATP.
  • In the formation of ATP
  • In the digestion of proteins through the breakdown into the carbon skeleton
  • In the degradation of carbohydrates
  • As proton flow through ATP synthase
  • None of the above: - As proton flow through ATP synthase
  1. At which part of ATP synthase is ATP produced? A. FO B. F

C. Axel D. Stator E. Both A and C: B. F

  1. An individual with the MERRF disease, tend to have symptoms of .
  • Blood pressure issues
  • headaches
  • High cholesterol
  • Muscle twitches
  • None of the above: - Muscle twitches
  1. In mitochondria, the molecule that produces ATP is located in the.

A. F

B. FO

C. F

D. F

E. Both A and D: E. Both A and D

  1. Use the word bank to fill in the following blanks. In the word bank, each word or words is separated by semicolons. Words can be used more than once, and not all words will be used. Word bank: ADP and Pi; ATP; GTP; oxidative; reductive; citric acid cycle; electron transport chain; three; eight; ten Oxidative phosphorylation occurs in (A) phases using NADH and

FADH2 generated from the (B). Oxidative phosphorylation is the synthesis of (C) from (D) , using energy generated by the (E) reactions.: A) three B) citric acid cycle C)ATP D) ADP and Pi E) electron transport chain

  1. Oxidative phosphorylation occurs in three phases. The first phase in the flow of electrons to from NADH and FADH2. What happens after this first

intermembrane space is the solution between the outer and inner membranes. The inner membrane is highly selective bilayer permitting only select ions and molecules to cross. The selectivity is crucial for maintaining specific concentrations of H+, ATP, and other species in the mitochondrial matrix. Also, the inner membrane contains the protein complexes of the electron transport chain, which accepts the electrons from the coenzymes. The matrix is the innermost space of mitochondrion where the citric acid cycle occurs along portions of fatty acid oxidation and the urea cycle. Once the NADH and FADH2 are produced by the citric acid cycle they are in proximity to the electron transport chain, so that donation of electrons and hydrogen ions is efficient.