100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached 4.6 TrustPilot
logo-home
Exam (elaborations)

Test Bank - Biochemistry, 9th Edition (Berg and Stryer, 2020), Chapter 1-36 | All Chapters

Rating
-
Sold
-
Pages
113
Grade
A+
Uploaded on
06-10-2024
Written in
2024/2025

Test Bank - Biochemistry, 9th Edition (Berg and Stryer, 2020), Chapter 1-36 | All Chapters

Institution
Biochemistry, Berg And Stryer, 9th Edition
Course
Biochemistry, Berg and Stryer, 9th Edition











Whoops! We can’t load your doc right now. Try again or contact support.

Written for

Institution
Biochemistry, Berg and Stryer, 9th Edition
Course
Biochemistry, Berg and Stryer, 9th Edition

Document information

Uploaded on
October 6, 2024
Number of pages
113
Written in
2024/2025
Type
Exam (elaborations)
Contains
Questions & answers

Subjects

Content preview

, DOWNLOAD THE Test Bank for Biochemistry 9th Edition Berg ci ci ci ci ci ci ci ci




Name: Class: Date: ci




Chapter 2 ci




1. What is NOT a key property that enable proteins to participate in a wide range of functions?
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci


a. Proteins have a high molecular weight. ci ci ci ci ci



b. Proteins contain different functional groups.
ci ci ci ci



c. Some proteins are quite rigid, whereas others display considerable flexibility.
ci ci ci ci ci ci ci ci ci



d. Proteins are linear polymers built of different amino acids.
ci ci ci ci ci ci ci ci



e. Proteins can interact with one another and with other biological macromolecules to form complex
ci ci ci ci ci ci ci ci ci ci ci ci ci ic


assemblies.
ANSWER: a ci




2. What does an α-amino acid consist of?
ci ci ci ci ci ci


a. carbonyl group, α carbon, amino group, oxygen atom, distinctive R group
ci ci ci ci ci ci ci ci ci ci



b. carboxylic acid group, α carbon, amino group, hydrogen atom, distinctive R group
ci ci ci ci ci ci ci ci ci ci ci



c. carboxylic acid group, ε carbon, nitro group, hydrogen atom ci ci ci ci ci ci ci ci



d. alcohol group, α carbon, amino group, nitrogen atom, distinctive R group, hydrogen atom
ci ci ci ci ci ci ci ci ci ci ci ci



e. carboxylic acid group, δ carbon, imine radical, hydrogen atom, distinctive R group
ci ci ci ci ci ci ci ci ci ci ci



ANSWER: b ci




3. What isomers of amino acids are found in proteins and what absolute configuration do they have?
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci


a. L isomer; R absolute configuration
ci ci ci ci



b. D and L isomers; R absolute configuration
ci ci ci ci ci ci



c. L isomer; S absolute configuration
ci ci ci ci



d. D isomer; S absolute configuration
ci ci ci ci



e. L and D isomers; S absolute configuration
ci ci ci ci ci ci



ANSWER: c ci




4. In an acidic solution (pH = 1), what is the ionization state of an amino acid?
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci


a. The amino group is deprotonated; the carboxyl group is protonated.
ci ci ci ci ci ci ci ci ci



b. The amino group is not dissociated; the carboxyl group is not dissociated.
ci ci ci ci ci ci ci ci ci ci ci



c. The amino group is protonated; the carboxyl group is deprotonated.
ci ci ci ci ci ci ci ci ci



d. The amino group is protonated; the carboxyl group is not dissociated.
ci ci ci ci ci ci ci ci ci ci



e. The amino group is deprotonated; the carboxyl group is not dissociated.
ci ci ci ci ci ci ci ci ci ci



ANSWER: d ci




5. Choose the correct groups for Thr, Lys, His, Met, respectively, on the basis of general chemical
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ic


characteristics.
a. polar but uncharged; negatively charged; positively charged; hydrophobic
ci ci ci ci ci ci ci



b. polar but uncharged; positively charged; positively charged; hydrophobic
ci ci ci ci ci ci ci



c. positively charged; hydrophobic; polar but not charged; positively charged
ci ci ci ci ci ci ci ci



d. negatively charged; hydrophobic; positively charged; polar but not charged
ci ci ci ci ci ci ci ci



e. positively charged; positively charged; polar but not charged; negatively charged
ci ci ci ci ci ci ci ci ci



ANSWER: b ci



CopyrightciMacmillanciLearning.ciPoweredcibyciCognero Pageci1
.
mynursytest.store

, DOWNLOAD THE Test Bank for Biochemistry 9th Edition Berg ci ci ci ci ci ci ci ci




Name: Class: Date: ci




Chapter 2 ci




6. Which amino acid has the one-letter abbreviation K?
ci ci ci ci ci ci ci


a. histidine
b. asparagine
c. alanine
d. valine
e. lysine
ANSWER: e ci




7. Choose the statement that does NOT reflect why a particular set of 20 amino acids becomes the building
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ic


block of proteins.
ci ci


a. Other possible amino acids may have simply been too reactive.
ci ci ci ci ci ci ci ci ci



b. The rings in their cyclic forms are too big.
ci ci ci ci ci ci ci ci



c. They provide proteins with the versatility to assume many functional roles.
ci ci ci ci ci ci ci ci ci ci



d. Many of these amino acids were probably available from prebiotic reactions.
ci ci ci ci ci ci ci ci ci ci



e. As a set, they are diverse.
ci ci ci ci ci



ANSWER: b ci




8. The amide bond is a linkage between the:
ci ci ci ci ci ci ci


a. β-amino group of one amino acid and the α-amino group of another amino acid.
ci ci ci ci ci ci ci ci ci ci ci ci ci



b. β-carboxyl group of one amino acid and the β-amino group of another amino acid.
ci ci ci ci ci ci ci ci ci ci ci ci ci



c. δ-carboxyl group of one amino acid and the α-carboxyl group of another amino acid.
ci ci ci ci ci ci ci ci ci ci ci ci ci



d. α-amino group of one amino acid and the ε-amino group of another amino acid.
ci ci ci ci ci ci ci ci ci ci ci ci ci



e. α-carboxyl group of one amino acid and the α-amino group of another amino acid.
ci ci ci ci ci ci ci ci ci ci ci ci ci



ANSWER: e ci




9. What is the amino-terminal residue and what is the carboxyl-
ci ci ci ci ci ci ci ci ci


terminal residue in the sequence of amino acidsGly-Tyr-Gly-Phe-Leu?
ci ci ci ci ci ci ci ic


a. Leucine is N-terminal and glycine is C-terminal.
ci ci ci ci ci ci



b. Glycine is N-terminal and leucine is C-terminal.
ci ci ci ci ci ci



c. Tyrosine is N-terminal and leucine is C-terminal. ci ci ci ci ci ci



d. Phenylalanine is N-terminal and leucine is C-terminal. ci ci ci ci ci ci



e. There are no N-terminal and C-terminal residues in the sequences of amino acids.
ci ci ci ci ci ci ci ci ci ci ci ci



ANSWER: b ci




10. Oligopeptide is a polypeptide chain made of: ci ci ci ci ci ci


a. numerous amino acids. ci ci



b. amino acids with a low molecular weight.
ci ci ci ci ci ci



c. positively charged amino acids. ci ci ci



d. small numbers of amino acids. ci ci ci ci



e. negatively charged amino acids. ci ci ci




CopyrightciMacmillanciLearning.ciPoweredcibyciCognero Pageci2
.
mynursytest.store

, DOWNLOAD THE Test Bank for Biochemistry 9th Edition Berg ci ci ci ci ci ci ci ci




Name: Class: Date: ci




Chapter 2 ci




ANSWER: d ci




11. A protein with a molecular weight of 75 550 g mol–
ci ci ci ci ci ci ci ci ci ci


1c i
has a mass of:a. 75,550 Da or 755.5 kDa.
ci ci ci ic ci ci ci ci ci



b. 7555 Da or 75.55 kDa.
ci ci ci ci ci



c. 75,550 Da or 75.55 kDa.
ci ci ci ci ci



d. 755,500 Da or 7.555 kDa.
ci ci ci ci ci



e. 7,555,000 Da or 75550 kDa.
ci ci ci ci ci



ANSWER: c ci




12. Knowledge of the amino acid sequences is important for several reasons. What is NOT one of those
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ic


reasons?
a. Amino acid sequences determine the three-dimensional structures of proteins.
ci ci ci ci ci ci ci ci



b. The sequence of a protein reveals much about its evolutionary history.
ci ci ci ci ci ci ci ci ci ci



c. Knowledge of the sequence of a protein can help to prevent mutations. ci ci ci ci ci ci ci ci ci ci ci



d. Changes in the amino acid sequence can lead to abnormal protein functioning and disease.
ci ci ci ci ci ci ci ci ci ci ci ci ci



e. The sequence of a protein is necessary to determine its function.
ci ci ci ci ci ci ci ci ci ci



ANSWER: c ci




13. Choose atoms that lie in a plane in a pair of linked amino acids.
ci ci ci ci ci ci ci ci ci ci ci ci ci



a. Cα3, C, O, N, Cα2 ci ci ci ci



b. Cα, C, N, H, Cα2 ci ci ci ci



c. Cα, C, O, N, H, Cα3 ci ci ci ci ci



d. Cα, Cα2, Cα3, N, H, C
ci ci ci ci ci



e. Cα, C, O, N, H, Cα2 ci ci ci ci ci



ANSWER: e ci




14. Which statement CORRECTLY describe a peptide bond?
ci ci ci ci ci ci


a. The C–N distance in a peptide bond is 1.49 Å; the peptide bond is positively charged.
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci



b. The C– ci


N distance in a peptide bond is 1.27 Å; the bond resonates between a single bond and adouble
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ic ci


bond; the peptide bond is negatively charged.
ci ci ci ci ci ci



c. The C– ci


N distance in a peptide bond is 1.32 Å; the bond resonates between a double bond and a triplebond; t
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ic ci


he peptide bond is a kind of dipole.
ci ci ci ci ci ci ci



d. The C– ci


N distance in a peptide bond is 1.35 Å; the bond resonates between a single bond and a triplebond; t
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ic ci


he peptide bond is a kind of dipole.
ci ci ci ci ci ci ci



e. The C– ci


N distance in a peptide bond is 1.30 Å; the bond resonates between a double bond and a triplebond; t
ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ci ic ci


he peptide bond is positively charged.
ci ci ci ci ci




CopyrightciMacmillanciLearning.ciPoweredcibyciCognero Pageci3
.
mynursytest.store

Get to know the seller

Seller avatar
Reputation scores are based on the amount of documents a seller has sold for a fee and the reviews they have received for those documents. There are three levels: Bronze, Silver and Gold. The better the reputation, the more your can rely on the quality of the sellers work.
Sucessguaranteed OXFORD UNIVERSITY
View profile
Follow You need to be logged in order to follow users or courses
Sold
55
Member since
1 year
Number of followers
0
Documents
621
Last sold
1 day ago

3.6

11 reviews

5
6
4
0
3
2
2
1
1
2

Recently viewed by you

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their tests and reviewed by others who've used these notes.

Didn't get what you expected? Choose another document

No worries! You can instantly pick a different document that better fits what you're looking for.

Pay as you like, start learning right away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and aced it. It really can be that simple.”

Alisha Student

Frequently asked questions