Campbell Essential Biology with Physiology (6th Edition)
6th Edition
ISBN: 9780134711751
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 10SQ
Most proteins can easily dissolve in water. Knowing that, where within the overall three-dimensional shape of a protein would you most likely find hydrophobic amino acids?
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Students have asked these similar questions
Figure 7 shows one additional type of bond that can stabilize the tertiary structure of a
protein. This bond is called a disulfide bond (or disulfide bridge), and it involves the
sulfhydryl (-SH) R groups from one particular type of amino acid. A disulfide bond can
form only under certain conditions (oxidative conditions). We'll talk about oxidation and
reduction next week. For now, just note that this type of bond does exist in some
proteins.
Answer the below questions on tertiary structure in your own document.
8. Figure 6 shows examples of bonds that might stabilize the tertiary structure of a
protein (labeled A, B, and C). Do these interactions involve only the amino acid R
groups, only the polypeptide backbone atoms, or both?
9. In the table below, indicate what type of bond/ interaction is represented in
the examples shown in Figure 6, panels A, B, and C and whether each
interaction involves group or backbone atoms.
Example
Type of Bonding Interaction
R group or backbone?
A
В
10.…
What exactly are proteins?What is a protein's building block? What are its chemical properties?How do proteins get denatured structurally? Explain it.What does it mean to have an isoelectric point? What is the significance of it?
strictly no plagiarism.
Hair is made of protein. The protein is a structural protein called α-keratin, which contains many disulfide (S-S) bridges formed from sulfhydryl functional groups found amongst amino acids radical groups. Based on how the protein folds, the radical groups have opportunities to generate multiple disulfide bridges. The greater the number of disulfide bridges, the more tightly the hair is coiled.
Using your knowledge of proteins, write a brief paragraph theocratizing how sodium hydroxide is used in hair products to straighten hair
Chapter 3 Solutions
Campbell Essential Biology with Physiology (6th Edition)
Ch. 3 - Prob. 1SQCh. 3 - Monomers are joined together to form larger...Ch. 3 - Prob. 3SQCh. 3 - Prob. 4SQCh. 3 - When two molecules of glucose (C6H12O6) are joined...Ch. 3 - One molecule of dietary fat is made by joining...Ch. 3 - Prob. 7SQCh. 3 - Prob. 8SQCh. 3 - Prob. 9SQCh. 3 - Most proteins can easily dissolve in water....
Ch. 3 - Prob. 11SQCh. 3 - Prob. 12SQCh. 3 - Name three similarities between DNA and RNA. Name...Ch. 3 - Prob. 14SQCh. 3 - Prob. 15IMTCh. 3 - Prob. 16IMTCh. 3 - Prob. 17IMTCh. 3 - A food manufacturer is advertising a new cake mix...Ch. 3 - Prob. 19PSCh. 3 - Prob. 20PSCh. 3 - Prob. 21BSCh. 3 - Prob. 22BSCh. 3 - Prob. 23BS
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- The following figure is a diagram (cartoon or caricature) of the structure of a protein. What types of secondary structure are observed in the molecule? Is it a globular protein or a fibrous one?arrow_forwardHow can a protein’s potential function be determined from a protein’s primary structure? I assumed this was not possible, I thought its function was determined from its 3-dimensional structure only. Thank you for explaining this.arrow_forwardAt what level of protein structure (primary, secondary, tertiary or quarternary) does Hydrogen bonding is relevant ? Consider if there is no Hydrogen bonding that exists, and only van der Waals exists in this protein structure, what do you expect to happen in its property? Explain with examples.arrow_forward
- In general, proteins can be classified into 3 different groups. Name and give a short description of each type and how they are distinct from one another. Provide an example of macromolecule or other complex structure representing each of the three types.arrow_forwardDraw the protein folding pattern when the polypeptide is immersed in water and in oil. Justify your answers by using chemical explanations. In the structure, point all possible types of intramolecular forces of attraction possible for this polypeptide in the indicated solvent system and discuss each. Discuss your answer H3N*-ala-ile-trp-arg-gly-ala-his-tyr-trp-gly-gly-tyr-arg-ile-val-thr-ile-trp-cys- met-gly-ile-asp-cys-thr-glu-cys-trp-gly-cys-phe-arg-his-pro-val-phe-CO-arrow_forwardHydrogen bonding is important at what level of protein structure (primary, secondary, tertiary, or quarternary)? Consider what would happen if there was no hydrogen bonding and just van der Waals in this protein structure. What would you anticipate to happen to its properties? Briefly explain with examples.arrow_forward
- Proteins are the most structurally sophisticated molecules known, consistent with their diverse range of functions, they vary extensively in structure . Make sure you include hydrogen bonds, ionic bonds, and an example of covalent bonding. Explain why not all proteins form a quaternary structure.arrow_forwardCarbon’s versatile bonding behavior allows it to form a variety of structures and are the base of all macromolecules. The diagram shows the structure of an amino acid, which is the monomer unit for proteins. Identify and describe the polymer structures of a protein that constitutes its unique conformation.arrow_forwardThe addition of ethanol, CH3CHOH, t an aqueous solution lowers the surface tension of the solution. Predict whether adding ethanol to an aqueous protein solution will tend to stabilize or unfold the protein. Briefly explain.arrow_forward
- (a) Are all proteins polymers? What is the basie unit of protein? Explain the formation of Zwitterion in a-amino acid. (b) Count the number of peptide bonds in the below structure. -R-N-C-R-N-C-R-N-C-R-N-C- wwww H H H Harrow_forwardGlycine provides structural flexibility in proteins. What is the consequence of this on protein structure?arrow_forwardIn the following diagram of a portion of a protein, label the types of interactions that are shown. What level of protein structure are these interactions producing? ____________________arrow_forward
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