Anatomy and Physiology: An Integrative Approach with Connect Access Card
3rd Edition
ISBN: 9781260254440
Author: Michael McKinley, Valerie O'Loughlin, Theresa Bidle
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3, Problem 5DYB
All of the following are accurate about enzymes except
- a. Enzymes are typically globular proteins with an active site.
- b. Enzymes decrease activation energy.
- c. Enzymes can be used over and over to catalyze a substrate to a product.
- d. Enzymes are versatile and can catalyze different types of
chemical reactions.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which of the following statements is true of all enzymes?
A
They are soluble in water.
B
They have a quaternary structure.
They have only one active site.
D They catalyse anabolic reactions.
C
The concept of “induced fit” refers to the fact that:
a. enzyme specificity is induced by enzyme-substrate binding.
b. enzyme-substrate binding induces an increase in the reaction entropy, thereby catalyzing the reaction.
c. enzyme-substrate binding induces movement along the reaction coordinate to the transition state.
d. substrate binding may induce a conformational change in the enzyme, which then brings catalytic groups into proper orientation.
e. when a substrate binds to an enzyme, the enzyme induces a loss of water (desolvation) from the substrate.
Indicate whether each of the following statements about an enzyme active site is true or false.
a. It is the location where substrate molecules are produced.
b. It always has a fixed, rigid geometry.
c. It always has a geometrical shape exactly complementary to that of substrate.
d. It always accomodates several structurally related substrates.
e. It is the location where substrate molecules are converted to product molecules.
f. It always has a shape that has a degree of flexibility to it.
g. it always accomodates only one specific substrate.
Chapter 3 Solutions
Anatomy and Physiology: An Integrative Approach with Connect Access Card
Ch. 3.1 - LEARNING OBJECTIVE
1. Describe the two classes of...Ch. 3.1 - Prob. 1WDLCh. 3.1 - LEARNING OBJECTIVES
2. Describe chemical energy...Ch. 3.1 - Prob. 3LOCh. 3.1 - Muscle contraction is an example of what form of...Ch. 3.1 - Prob. 4LOCh. 3.1 - Prob. 5LOCh. 3.1 - Prob. 3WDLCh. 3.2 - Prob. 6LOCh. 3.2 - Prob. 7LO
Ch. 3.2 - Prob. 4WDLCh. 3.2 - Prob. 8LOCh. 3.2 - Prob. 9LOCh. 3.2 - Prob. 10LOCh. 3.2 - Prob. 11LOCh. 3.2 - Prob. 1WDTCh. 3.2 - For a biochemical reaction that involves simple...Ch. 3.2 - Prob. 6WDLCh. 3.2 - Explain what occurs when the equilibrium is...Ch. 3.2 - Prob. 12LOCh. 3.2 - Prob. 13LOCh. 3.2 - Explain the effect a fever would have on chemical...Ch. 3.2 - Prob. 14LOCh. 3.3 - What is the relationship of enzymes and activation...Ch. 3.3 - Prob. 15LOCh. 3.3 - Prob. 16LOCh. 3.3 - What is the active site of an enzyme and how does...Ch. 3.3 - Prob. 17LOCh. 3.3 - Prob. 18LOCh. 3.3 - What is the mechanism of enzyme action, including...Ch. 3.3 - Prob. 19LOCh. 3.3 - LEARNING OBJECTIVES
20. Describe the naming...Ch. 3.3 - Prob. 2WDTCh. 3.3 - Explain how enzymes are generally named.Ch. 3.3 - Prob. 21LOCh. 3.3 - LEARNING OBJECTIVES
22. Explain the effect of...Ch. 3.3 - Prob. 23LOCh. 3.3 - How do changes in substrate concentration,...Ch. 3.3 - Prob. 24LOCh. 3.3 - How are enzymes regulated through competitive and...Ch. 3.3 - Prob. 25LOCh. 3.3 - LEARNING OBJECTIVES
26. Explain the role of...Ch. 3.3 - LEARNING OBJECTIVES
27. Identify and explain the...Ch. 3.3 - Prob. 15WDLCh. 3.3 - Prob. 16WDLCh. 3.4 - Prob. 28LOCh. 3.4 - LEARNING OBJECTIVES
29. Name the two pathways...Ch. 3.4 - Prob. 30LOCh. 3.4 - Prob. 17WDLCh. 3.4 - Prob. 18WDLCh. 3.4 - Prob. 31LOCh. 3.4 - Prob. 3WDTCh. 3.4 - Prob. 19WDLCh. 3.4 - Prob. 20WDLCh. 3.4 - LEARNING OBJECTIVES
32. Explain the enzymatic...Ch. 3.4 - Prob. 33LOCh. 3.4 - Prob. 21WDLCh. 3.4 - Prob. 34LOCh. 3.4 - Prob. 4WDTCh. 3.4 - Prob. 22WDLCh. 3.4 - Prob. 23WDLCh. 3.4 - Prob. 35LOCh. 3.4 - Prob. 36LOCh. 3.4 - Prob. 24WDLCh. 3.4 - Prob. 25WDLCh. 3.4 - LEARNING OBJECTIVES
37. Calculate the number of...Ch. 3.4 - WHAT DO YOU THINK?
5 Given that energy from each...Ch. 3.4 - Prob. 26WDLCh. 3.4 - LEARNING OBJECTIVES
38. Explain the fate of...Ch. 3.4 - Prob. 39LOCh. 3.4 - Prob. 27WDLCh. 3.4 - Prob. 40LOCh. 3.4 - Prob. 28WDLCh. 3 - Energy in ATP is used to power skeletal muscle...Ch. 3 - Prob. 2DYBCh. 3 - Prob. 3DYBCh. 3 - ATP inhibits phosphofructokinase by binding to an...Ch. 3 - All of the following are accurate about enzymes...Ch. 3 - Prob. 6DYBCh. 3 - Prob. 7DYBCh. 3 - All stages of cellular respiration are decreased...Ch. 3 - Prob. 9DYBCh. 3 - Prob. 10DYBCh. 3 - Prob. 11DYBCh. 3 - Describe the different ways of classifying...Ch. 3 - Prob. 13DYBCh. 3 - Describe the structure and mechanism of enzymes.Ch. 3 - Prob. 15DYBCh. 3 - Prob. 16DYBCh. 3 - In general terms, explain the fate of pyruvate if...Ch. 3 - Describe how oxygen becomes part of water during...Ch. 3 - Identify the source of carbon in carbon dioxide.Ch. 3 - Prob. 20DYBCh. 3 - Prob. 1CALCh. 3 - Prob. 2CALCh. 3 - Another challenge to a patient with impaired...Ch. 3 - Prob. 4CALCh. 3 - Prob. 5CALCh. 3 - Prob. 1CSLCh. 3 - Prob. 2CSLCh. 3 - What occurs to the amount of product formed in a...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- INSTRUCTIONS - Answer the following multiple-choice questions and EXPLAIN in 3-5 sentences why you chose that answer. Answer properly -arrow_forwardMatch the following terms with the best definition. Enzyme Product Substrate Active Site A. A macromolecule serving as a catalyst. B. A material resulting from a chemical reaction. C. The reactant on which an enzyme works. D. Location on an enzyme where the reaction is catalyzed.arrow_forwardAccording to the lock-and-key model of enzyme action,a. reactants must first be heated.b. enzyme shape is not important.c. each enzyme can catalyze many types of reactions.d. reactants must bind to an active site on the enzyme.e. enzymes control only a small number of reactions in the cell.arrow_forward
- Please choose one of these answers A. An allosteric inhibitor appeared B. There was a dramatic change jn the pH. C. The enzyme had achieved its maximum velocity. D. The enzyme had denatured E. A large amount of the substrate had been consumed.arrow_forwardEnzymes work by at least three mechanisms. Which of the following is NOT a mechanism by which enzymes function? A. by putting reactants in close proximity to each other. B. by altering the free energy ( ΔG) of the reaction. C. by orienting the reactants so they are positioned to favour the transition state. D. by altering the immediate environment of the reactants to promote reactant interactions.arrow_forwardCharacterization of enzyme activity does not allow us to: a. determine how different variables affect the enzyme's ability to function b. determine the molecular composition of the enzyme c. determine the optimal environment for an enzyme to function d. determine the effect of inhibitors on the enzymearrow_forward
- An allosteric inhibitor does which of the following? a. Binds to an enzyme away from the active site and changes the conformation of the active site, increasing its affinity for substrate binding. b. Binds to the active site and blocks it from binding substrate. c. Binds to an enzyme away from the active site and changes the conformation of the active site, decreasing its affinity for the substrate. d. Binds directly to the active site and mimics the substrate.arrow_forwardIndicate whether each of the following statements describes a reversible competitive inhibitor, a reversible noncompetitive inhibitor, or an irreversible inhibitor. More than one answer may apply.a. Both inhibitor and substrate bind at the active site on a random basis.b. The inhibitor effect cannot be reversed by the addition of more substrate.c. Inhibitor structure does not have to resemble substrate structure.d. The inhibitor and substrate can bind to the enzyme simultaneouslyarrow_forwardChoose only the letter, no explanation needed. Enzyme activity is affected by a variety of factors. What factor causes the enzyme to denature if it becomes extremely high? * Choices: A. Water's Effect B. pH C. Temperature D. Activator's Effect An inhibitor binds to the enzyme's active site, preventing the substrate from binding to it. What conclusions can you make from this situation? * A. No reaction occurred B. Non-competitive inhibition occurred C. Enzyme activity occurred D. Competitive inhibition occurred Each enzyme is very selective when it comes to its substrate. What can you conclude from this statement? * A. Any substrate can bind to the active site. B. Enzymes are used up in the reaction. C. Only a specific substrate can bind to the active site. D. Enzymes break down when not used. Lock : Key :: Active Site : _____________________________ * A. Substrate B. Active Site C. Coenzyme D. Cofactor Enzymes only speed up biological functions, so they are NOT used up in the…arrow_forward
- The 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_forwardWhich of the following is true about allosteric enzymes? A. Allosteric enzymes are always multimeric. B. Regulatory sites (allosteric sites) on an allosteric enzyme are always different from the catalytic site. C. Allosteric enzymes always change the conformation of the active site in response to binding of an allosteric modulator. D. Suicide inactivators are examples of allosteric modulators.arrow_forwardAn enzyme has the ability to catalyze reactions of several unrelated compounds. The mechanism of how this enzyme operates is best explained by a. the lock-and-key theory b. the induced-fit theory c. the enzyme-substrate complex d. the efficiency of the enzymearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Anaerobic Respiration; Author: Bozeman Science;https://www.youtube.com/watch?v=cDC29iBxb3w;License: Standard YouTube License, CC-BY