Anatomy & Physiology
3rd Edition
ISBN: 9781259398629
Author: McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher: Mcgraw Hill Education,
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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.
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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
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.
Chapter 3 Solutions
Anatomy & Physiology
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...
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- 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.arrow_forwardINSTRUCTIONS - Answer the following multiple-choice questions and EXPLAIN in 3-5 sentences why you chose that answer. Answer properly -arrow_forwardThe following statement can be said about enzymes: A. lowers activation energy of reactions B. regulates chemical activities in the body C. 3D shape is essential for normal function D. all of these E. B and C onlyarrow_forward
- Which of the following statements about enzymes or their function is true? Select one: a. Enzymes are permanently modified during a biochemical reaction. O b. Enzymes act as catalysts. c. Enzymes modify reactions thermodynamic equilibrium. O d. Enzymes increase the activation energy required for a biochemical reaction to occur.arrow_forwardWhich of the following statements is not true about enzymes?* A. Enzymes are biological catalysts B. Enzymes as catalysts lowers the activation energy thus, speeds up the rate of reaction C. Enzymes are proteins D. Enzymes are highly specific E. None of the given optionsarrow_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_forward
- Which of the following is not true about enzymes?a. They are consumed by the reactions they catalyze.b. They are usually made of amino acids.c. They lower the activation energy of chemical reactions.d. Each one is specific to the particular substrate(s) to which it binds.arrow_forwardWhich of the following is a primary function of the active site of an enzyme? a. It binds allosteric regulators of the enzyme. b. It binds noncompetitive inhibitors of the enzyme. c. It catalyzes the reaction associated with the enzyme. d. It is activated by the presence of the end product of the metabolic pathway in which the enzyme is involved. Clear my choice Question 2 Not yet answered Points out of 2.00 Flag question Question text Which of the following statement about the mass spectrometry is true? a. Large amount of protein sample is needed for mass spectrum, and thus it is very expensive. b. It is a powerful method to determine the 3-dimensional structure of proteins. c. It can be sued for protein location in a living cell. d. It can be used to measure the molecular weight of proteins. e. It can be used to determine the stability of a protein structure in solution. Clear my choice…arrow_forwardWhich of the following is not true about enzymes: a. They increase ΔG of reactions. b. They are usually made of amino acids. c. They lower the activation energy of chemical reactions. d. Each one is specific to the particular substrate(s) to which it binds.arrow_forward
- Enzymes 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_forwardAn 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_forwardWhich of the following accurately describes how an enzyme functions? a. reduces the energy content of the products b. allows for the exothermic reaction of materials that are usually endothermic c. changes the reaction mechanism effectively reducing the activation energy d. shifts the equilibrium for the reactionarrow_forward
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