Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159080
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: Mcgraw-hill Education,
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Textbook Question
Chapter 55, Problem 7PL
The change of the unique three-dimensional shape of a protein, such as an enzyme, due to extreme temperature or pH conditions is called denaturation.
a. True
b. False
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Chapter 55 Solutions
Laboratory Manual For Human Anatomy & Physiology
Ch. 55 - The enzyme amylase accelerate s the reaction of...Ch. 55 - Amylase originates from a. salivary glands and...Ch. 55 - The optimum pH for amylase activity is a. 014 . b....Ch. 55 - After an enzyme reaction is completed, the enzyme...Ch. 55 - As temperatures decrease, enzyme activity a....Ch. 55 - Prob. 6PLCh. 55 - The change of the unique three-dimensional shape...Ch. 55 - Test results:Ch. 55 - Test results:
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- Briefly explain why the size and weight of a protein are not directly proportional to the number of amino acid residues it contains. (think about the properties of different amino acids)arrow_forwardMatch the terms related to protein building.arrow_forwardThe following statements are either True or False. Please label accordingly. a. L-Amino reductase is an enzyme. b. Allosteric enzymes are composed of two or more protein chains. Heavy metals are examples of inhibitors. They function by binding to sulfur on cysteine amino acid residues. C. d. A reversible noncompetitive inhibitor temporarily blocks an enzyme's active site. Enzymes don't denature as easily as smaller proteins when heated or stressed due to their complex secondary and tertiary structure. e. Oxidative phosphorylation is the biochemical process by which ATP is synthesized from ADP when protons cross the inner mitochondrial membrane. f. g. DNA and RNA strands differ only in the fact that DNA forms a double helix. h. There is no secondary structure in RNA strands.arrow_forward
- Galactose is a pentose sugar. Select one: a. False b. Truearrow_forwardThe function of a protein depends on the protein's ______ A. size B. structureC. pHarrow_forwardUse your knowledge of the color reactions of proteins to answer this question. In the search for a new biomaterial made using bacteria, you have been given an unknown sample of some bacterial protein. If this protein contains the amino acids cysteine and tryptophan, but NOT the amino acid tyrosine, then it will be a perfect match for the biomaterial you want. Devise an experiment to test if the bacterial protein meets your requirements. Mention all the tests you will perform, and all the reagents used, steps taken, and indications of favorable results. (HINT: Cysteine contains sulfur, tryptophan contains benzene, tyrosine contains phenol)arrow_forward
- A protein that has lost its tertiary structure and is non- functional is called dearrow_forwardCellulose molecules are made up of glucose molecules attached to each other by α-(1,6) linkages. Select one: a. True b. Falsearrow_forwardChoose the best answer for following question Which of the following levels of protein structure is determined byinteractions of more than one polypeptide chain?a. primary c. tertiaryb. secondary d. quaternaryarrow_forward
- Which of the following statements is true? A. B. C. D. Peptide bonds are the only covalent bonds that can link together two amino acids in proteins. The polypeptide backbone is free to rotate about each peptide bond. Nonpolar amino acids tend to be found in the interior of proteins. The sequence of the atoms in the polypeptide backbone varies between different proteins.arrow_forwardExplain why unfolding or aggrrgation may occur using changes in entropy and enthalpy of the protein and water. a. The shift of a pH from pH 7 to pH 11 b. Addition of Triton-x (detergent) into buffer c. Raising the temperature of the solution from 25 C to 100 Carrow_forwardChoose correct option. Question 6:- Why are DNA mutations usually very detrimental to the final protein product? a. Because the number of peptide bonds will decrease dramatically. b. Because the active site will become a catalyst as a result of DNA mutations, which can be detrimental to the cell. c. Because the protein may lose functionality (literal shape change) as a result of a DNA sequence change. d. Because the protein could no longer work in warm conditions as a result of DNA changes.arrow_forward
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