Which of the following statements is FALSE? Select one: a. Secondary structure of a protein determines how it folds up into a unique three dimensional structure. b. Three dimensional structure of a protein determines the function of a protein. c. Primary structure of a protein determines how it folds up into a unique three dimensional structure. d. Amino acid sequence is absolutely important for a particular protein.

Which of the following statements is FALSE? Select one: a. Secondary structure of a protein determines how it folds up into a unique three dimensional structure. b. Three dimensional structure of a protein determines the function of a protein. c. Primary structure of a protein determines how it folds up into a unique three dimensional structure. d. Amino acid sequence is absolutely important for a particular protein.

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter2: Chemistry Of Life

Section: Chapter Questions

Problem 7RQ: Describe the four levels of protein structure. How do a proteins side groups influence its...

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Which 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.
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 polypeptides
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
which of the following is correct about the structure of proteins? a- the number of peptide bonds is equivalent to the number of amino acid residues b- the secondary structure of proteins are mostly stabilized by hydrophobic interactions c- protiens mostly composed of polar amino acids will have an elongated (fibrous) tertiary structure d- the quaternary structure of a protein is formed between or among similar polypeptides only
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 role
A portion of a polypeptide chain contains the following sequence of amino acids: (-Met, -Leu, -Ala, -Cys, -Asp-) a.) Which amino acid can form a disulfide bond? b.) Which amino acids are likely to make the polypeptide more soluble in water? c.) Which amino acids are likely to make the polypeptide less soluble in water? d.) How does the primary structure of a protein affect its tertiary structure?
Three proteins K, L and M have the same % composition. Which is TRUE? A. The three proteins will have the same amino acid sequence B. The tertiary structure of these proteins will depend on the sequence of their amino acids C. The three proteins will have the same function D. The three proteins will have the same shape
A mutation leads to a change in amino acid from valine, an amino acid with a nonpolar side chain, to aspartic acid, an amino acid with a polar, negatively-charged side chain. Do you think that the following levels of protein structure change? If so, how and why? If not, why not? Please frame your answer in terms of chemical bonds and interactions. (primary structure, secondary structure, tertiary structure, quartenary structure)
A 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?
Which of the following describes a primary protein structure?A) Protein structure maintained by disulfide linkages.B) Amino acid sequence maintained by peptide bonds.C) Protein chains maintained by interactions of peptide backbones like an α-helix.D) Arrangement of multiple protein subunits.E) Protein structure maintained through multiple hydrogen bonds.
Which 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 above
What is the primary structure of a protein? Describe how the primary structure of proteins is used by evolutionary biologists