BIOLOGY
5th Edition
ISBN: 9781264104680
Author: BROOKER
Publisher: MCG
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Chapter 5.4, Problem 1CS
Summary Introduction
To determine: The amino acid which is expected to cross an artificial phospholipid bilayer.
Introduction: The phospholipid bilayer is arranged in the form of leaflets arranged such that polar heads are directed towards the outside and the hydrophobic tail is hidden towards the inside. The phospholipid layer provides both fluidity and rigidity to the membrane and is responsible for the selective permeability of the membrane.
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Exercise B: Peptide Bond Formation
Figure 2 shows two individual amino acids, and then those same two amino acids after
they have been linked together by a peptide bond to form a dipeptide. Addition of
more amino acids linked by peptide bonds would form a polypeptide, the precursor to a
functional protein.
нн
+| | ||
H-N-C-Ĉ-0
H.
+! | ||
H-N-C-ċ –0
H.
H
H
H
+| | ||
H-N-C-C-N-C-C-
+
H
CH2
CH2
H
CH2
H.
CH2
SH
SH
NH,
NH,
Figure 2. Formation of a peptide bond between two amino acids.
Answer the below questions in your own document.
1. Which two amino acids are shown on the left side of Figure 2? Use the Figure
3.2 from your text to answer this.
2. To which chemical groups do these amino acids belong?
3. Were you able to identify their chemical characteristics based on your rules? If
not, you should go back and revise your rules!
On the dipeptide shown in Figure 2, label the peptide bond that was formed when the
two individual amino acids were joined. Label the free amino and carboxyl…
Exercise B: Peptide Bond Formation
Figure 2 shows two individual amino acids, and then those same two amino acids after
they have been linked together by a peptide bond to form a dipeptide. Addition of
more amino acids linked by peptide bonds would form a polypeptide, the precursor to a
functional protein.
H
H
H.
H
H
+| |
H-N-Ċ- ċ-0
H-N-Ć- Ĉ-O
H-N-Č -C.
N-C-C-
H
CH2
H.
CH2
H.
CH2
H
CH2
SH
SH
NH2
NH2
Figure 2. Formation of a peptide bond between two amino acids.
Answer the below questions in your own document.
F1. Which two amino acids are shown on the left side of Figure 2? Use the Figure
They 3.2 from your text to answer this.
2. To which chemical groups do these amino acids belong?
3. Were you able to identify their chemical characteristics based on your rules? If
not, you should go back and revise your rules!
On the dipeptide shown in Figure 2, label the peptide bond that was formed when the
two individual amino acids were joined. Label the free amino and carboxyl groups at
the ends…
Exercise B: Peptide Bond Formation
Figure 3 shows two individual amino acids, and then those same two amino acids after
they have been linked together by a peptide bond to form a dipeptide. Addition of
more amino acids linked by peptide bonds would form a polypeptide, the precursor to a
functional protein.
нн
H
H O
нно
H O
+| | ||
H-N-C-ċ-o +
+| 1 ||
H-N-C-C
+| | ||
Н-N—С- С—N—C—С
H
CH2
H
CH2
H
CH2
CH2
SH
SH
NH2
NH2
Figure 3. Formation of a peptide bond between two amino acids.
Answer the below questions in your own document.
• Which two amino acids are shown on the left side of Figure 3? Use Figure 2 to
answer this.
• To which chemical groups do these amino acids belong?
Were you able to identify their chemical characteristics based on your rules? If
not, you should go back and revise your rules!
On the dipeptide shown in Figure 3, label the peptide bond that was formed when the
two individual amino acids were joined. Label the free amino and carboxyl groups at
the ends of this…
Chapter 5 Solutions
BIOLOGY
Ch. 5.1 - Core Skill: Modeling The goal of this modeling...Ch. 5.2 - Prob. 1CSCh. 5.3 - Prob. 1CCCh. 5.3 - Prob. 2CCCh. 5.4 - Prob. 1CSCh. 5.4 - Prob. 2CSCh. 5.4 - Lets suppose the inside of a cell has a solute...Ch. 5.5 - What is the purpose of gating?Ch. 5.5 - Prob. 1EQCh. 5.5 - Prob. 2EQ
Ch. 5.5 - Prob. 3EQCh. 5.6 - What is the function of the protein coat?Ch. 5 - Prob. 1TYCh. 5 - Which of the following events can never be...Ch. 5 - Lets suppose an insect, which doesnt maintain a...Ch. 5 - Prob. 4TYCh. 5 - Prob. 5TYCh. 5 - Prob. 6TYCh. 5 - Prob. 7TYCh. 5 - Prob. 8TYCh. 5 - Prob. 9TYCh. 5 - Large particles or large volumes of fluid can be...Ch. 5 - With your textbook closed, draw and describe the...Ch. 5 - Prob. 2CQCh. 5 - Prob. 3CQCh. 5 - Prob. 1COQCh. 5 - With regard to bringing solutes into the cell...
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