Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 8TYK
The first and major effect in denaturation of proteins is that:
a. peptide bonds break.
b. α helices unwind.
c. β sheet structures unfold.
d. tertiary structure is changed.
e. quaternary structures disassemble.
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Which of the following describes the tertiary structure of proteins?
A. Helices and sheets formed from hydrogen bonds between the amino acids of polypeptides
B. The functional domains that form from interactions between different parts of the polypeptide
C. The association of multiple polypeptides
D. The linear sequence of amino acids making up the polypeptide
Match the level of protein structure to its description:
Primary
Secondary
Tertiary
Quaternary
A.
Folding due to interactions among the peptide backbone
B.
Interactions among multiple polypeptide chains
C.
Sequence of amino acids
D.
Folding due to interactions among side chains
Biological activity of proteins is dependent on which?
A. peptide bonds
B. thermodynamic properties
C. an aqueous environment
D. protein conformation
Chapter 3 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 3.1 - What is the difference between hydrocarbons and...Ch. 3.1 - What is the maximum number of bonds that a carbon...Ch. 3.1 - Do carboxyl groups, amino groups, and phosphate...Ch. 3.1 - What is the difference between a dehydration...Ch. 3.2 - What is the difference between a monosaccharide, a...Ch. 3.3 - What are the three most common lipids in living...Ch. 3.4 - Prob. 1SBCh. 3.4 - What is a peptide bond, and what type of reaction...Ch. 3.4 - Prob. 3SBCh. 3.5 - What is the monomer of a nucleic acid...
Ch. 3.5 - What are the chemical differences between DNA and...Ch. 3 - Which functional group has a double bond and forms...Ch. 3 - Which of the following characteristics is not...Ch. 3 - Cellulose is to carbohydrate as: a. amino acid is...Ch. 3 - Maltose, sucrose, and lactose differ from one...Ch. 3 - Lipids that are liquid at room temperature: a. are...Ch. 3 - Which of the following statements about steroids...Ch. 3 - The term secondary structure refers to a proteins:...Ch. 3 - The first and major effect in denaturation of...Ch. 3 - In living systems: a. proteins rarely combine with...Ch. 3 - RNA differs from DNA because: a. RNA may contain...Ch. 3 - Discuss Concepts Identify the following structures...Ch. 3 - Discuss Concepts Lipoproteins are relatively...Ch. 3 - Prob. 13TYKCh. 3 - Prob. 14TYKCh. 3 - Prob. 15TYKCh. 3 - Prob. 1ITDCh. 3 - Prob. 2ITDCh. 3 - Prob. 3ITD
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- The difference between a polypeptide and a protein is a. that proteins are polypeptides folded up into a functional three-dimensional conformation b. that proteins are precursors of polypeptides c. that polypeptides are made of protein folded up into a functional three-dimensional conformation d. that proteins are always made with many polypeptidesarrow_forwardWhich of the following is TRUE, if the protein pH is electrically neutral? Refer to the graph below. a. The denaturation of protein is lower than 100% b. The denaturation of protein is greater than 100% c. The protein is in native form d. The protein is completely denaturedarrow_forwardWhich of the following statements about proteins is FALSE? a They can be hydrophobic, hydrophilic, or both. b They are composed of amino acids. c Their primary function is energy storage. d They have multiple levels of structural organization.arrow_forward
- Which of the following statements is/are TRUE for globular proteins? A. sensitive to changes in pH & heat B. regular amino acid sequence C. soluble in water D. structural rolearrow_forwardWhich of the following bonding types is the most important in the nonaqueous interfaces between protein subunits? a. van der Waals interactions b. the hydrophobic effect c. ionic bonds d. disulfide bridgesarrow_forwardWhich of the following, if any, is correct about protein folding? a)2° structure formation is primarily entropic, 3° structure formation is primarily entropic b)2° structure formation is primarily entropic, 3° structure formation is primarily enthalpic c)2° structure formation is primarily enthalpic, 3° structure formation is primarily entropic d)2° structure formation is primarily enthalpic, 3° structure formation is primarily enthalpic e)None of the abovearrow_forward
- Peptide bonding between amino acids in a polypeptide is an example of which type of chemical bonding? a) electrostatic b) covalent c) ionic d) hydrogenarrow_forwardWhich of the following levels of protein structure can involve covalent bond formation? A) Primary B) Secondary C) Teritary D) Quaternary E) Primary and teritary F) Primary, teritary and quaternaryarrow_forwardA friend, while frying some eggs, points to the change in the egg white (which contains a protein called albumin) and explains that if the conformation of a protein changes, it will no longer have the same properties and will lose its ability to function. Do you agree or disagree with this statement?arrow_forward
- Protein β-sheets are most likely to be found in: a either the interior or exterior of proteins, with no preference for one or the other. b the exterior of proteins, exposed to the aqueous environment. c the interior of proteins, away from the aqueous environment.arrow_forwardWhich of the following statement about quaternary structure of protein is correct? Select one: a. Quaternary structure is a force between different polypeptides. b. Hydrogen bond is an only force found in quaternary structure. c. Quaternary structure contains one polypeptide. d. Quaternary structure is an unfolded form of protein.arrow_forwardWhich of the following are involved in protein secondary structure? select one or more : a. van der waal forces b. Disulfide bridges c. Hydrogen bonds d. Peptide bondsarrow_forward
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