Which statement(s) correctly describe(s) protein structures? A. All hydrophobic residues are buried when protein structures and protein aggregates B. Charged and polar amino acid residues are seldom buried in the protein interior C. Lysine is found only in the protein interior D. Glycine is rarely found in proteins due to its destabilizing effect A,B,C A,C B B,C,D

Which statement(s) correctly describe(s) protein structures? A. All hydrophobic residues are buried when protein structures and protein aggregates B. Charged and polar amino acid residues are seldom buried in the protein interior C. Lysine is found only in the protein interior D. Glycine is rarely found in proteins due to its destabilizing effect A,B,C A,C B B,C,D

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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What causes a protein to fold? A. Chemical interactions between the specific R-groups of the protein chain B. Chemical interactions that draw certain nucleotides together C. Chemical attractions between amino groups and acid groups that form covalent bonds D. The protein folds into the shape that is most physically stable, depending upon the number of amino acids in the chain
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
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
Protein Structure and Folding:a. Explain how changes in a protein’s amino acid sequence can change the way it behaves in water.b. Explain how changes in a protein’s amino acid sequence can change the way it interacts with othermolecules.c. Explain how changes in a protein’s amino acid sequence can change the way it forms secondary andtertiary structures when placed in water.
Which of the following is NOT a function of proteins? A. movement of muscles B. provide structural components stores the genetic information of a living organism C. catalyze reactions in the cells D. transport substances through the bloodstream
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
Which 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 denatured
Biological activity of proteins is dependent on which? A. peptide bonds B. thermodynamic properties C. an aqueous environment D. protein conformation
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?
In order for proteins to function properly the neccessary amino acids must have a specific what? A. Sequence B. Bond C. Number D. Compound
which of the following is correct about protein hydration? a- hydrophobic pathces are hydrated first followed by exposed polar side chains. b- the monolayer water that hydreates proteins are those that hydrate ionic, polar, and nonpolar amino acids on the surface of the protein c- polar amino acids are the first hydrated followed by ionic aminio acids d- hydration of hydrophoic patches in proteins is not possible
Which of the following might cause the denaturation of a protein? Select all that apply. A. Highly acidic conditions B. Highly basic conditions C. High concentrations of salt D. High heat