1. What is the name of this tripeptide? 2. 2. What is the name of the amino acid at the C terminal 3. What is the name of the amino acid at the N terminal 4. How many peptide bonds dose the tripeptide has? 5. Which amino acid will form the disulfide bond?

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Chapter1: Chemical Foundations
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I.
II.
III.
IV.
1. What is the name of this tripeptide?
2.
2. What is the name of the amino acid at the
C terminal
3. What is the name of the amino acid at the N
terminal
V.
4. How many peptide bonds dose the
tripeptide has?
5. Which amino acid will form the disulfide
bond?
O
HƠN-CH-CANH-CH,-C-NH-CH-C-O
O
alanyl
CH3
2. Types of protein structures:
What is the type of protein structure that
contains a single strand and bound by disulfide
bond.
The structure containing an alpha-
helix_
The structure contains beta pleated
sheets
The structure is made up of
H₂N-
glycyl
H
OH
T
CH, O
||
C-OH
subunit
What is the difference between a tertiary
structure and a quaternary structure?
O
CH₂OH
serine
3. Indicate which structure is at low pH (acidic, basic
or neutral (zwitterion)
protein structures?
H
I
H₂N-C-COO™
1
R
4. What are
five factors
that affects
5.Indicate the amino acid as polar or nonpolar
OH
I
CH, O
H₂N-C-C-OH
H
H₂N-
CH, 0
C-
H
CH3 CH3
CH
CHÀO
!!
H₂N-C-C-0
6) Acids and bases denature a protein by
disrupting
A) peptide bonds and ionic bonds.
B) amide bonds and alkene bonds.
C) hydrophobic interactions and peptide
bonds.
0
H
D) ionic bonds and hydrophobic interactions.
E) ionic bonds and hydrogen bonds.
5) Heat denatures a protein by disrupting
A) ionic bonds and peptide bonds.
B) hydrophobic bonds and hydrogen bonds.
C) peptide bonds and hydrophobic bonds.
D) disulfide bonds and peptide bonds.
E) hydrogen bonds and disulfide bonds.
CH, 0
H₂N-C- -C-0
7) Denaturation of a protein
A) changes the primary structure of a protein.
B) disrupts the secondary, tertiary, or
quaternary structure of a protein.
C) is always irreversible.
D) hydrolyzes peptide bonds.
E) can only occur in a protein with quaternary
structure.
8) Heavy metals denature proteins by
A) releasing amino acids.
B) disrupting hydrophobic interactions.
C) changing the pH of the protein solution.
D) changing the temperature of the protein
solution.
E) disrupting disulfide bonds.
9) An acid can denature a protein
by
A) agitating the protein chains.
B) disrupting hydrogen bonds
between R groups chains.
H
C) disrupting hydrophobic interactions within
Transcribed Image Text:I. II. III. IV. 1. What is the name of this tripeptide? 2. 2. What is the name of the amino acid at the C terminal 3. What is the name of the amino acid at the N terminal V. 4. How many peptide bonds dose the tripeptide has? 5. Which amino acid will form the disulfide bond? O HƠN-CH-CANH-CH,-C-NH-CH-C-O O alanyl CH3 2. Types of protein structures: What is the type of protein structure that contains a single strand and bound by disulfide bond. The structure containing an alpha- helix_ The structure contains beta pleated sheets The structure is made up of H₂N- glycyl H OH T CH, O || C-OH subunit What is the difference between a tertiary structure and a quaternary structure? O CH₂OH serine 3. Indicate which structure is at low pH (acidic, basic or neutral (zwitterion) protein structures? H I H₂N-C-COO™ 1 R 4. What are five factors that affects 5.Indicate the amino acid as polar or nonpolar OH I CH, O H₂N-C-C-OH H H₂N- CH, 0 C- H CH3 CH3 CH CHÀO !! H₂N-C-C-0 6) Acids and bases denature a protein by disrupting A) peptide bonds and ionic bonds. B) amide bonds and alkene bonds. C) hydrophobic interactions and peptide bonds. 0 H D) ionic bonds and hydrophobic interactions. E) ionic bonds and hydrogen bonds. 5) Heat denatures a protein by disrupting A) ionic bonds and peptide bonds. B) hydrophobic bonds and hydrogen bonds. C) peptide bonds and hydrophobic bonds. D) disulfide bonds and peptide bonds. E) hydrogen bonds and disulfide bonds. CH, 0 H₂N-C- -C-0 7) Denaturation of a protein A) changes the primary structure of a protein. B) disrupts the secondary, tertiary, or quaternary structure of a protein. C) is always irreversible. D) hydrolyzes peptide bonds. E) can only occur in a protein with quaternary structure. 8) Heavy metals denature proteins by A) releasing amino acids. B) disrupting hydrophobic interactions. C) changing the pH of the protein solution. D) changing the temperature of the protein solution. E) disrupting disulfide bonds. 9) An acid can denature a protein by A) agitating the protein chains. B) disrupting hydrogen bonds between R groups chains. H C) disrupting hydrophobic interactions within
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