Connect with Learnsmart Labs Access Anatomy & Physiology : An Integrative Approach
2nd Edition
ISBN: 9781259657269
Author: Valerie Dean O'Loughlin, Theresa Stouter Bidle Michael P. McKinley
Publisher: Mcgraw-Hill
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Chapter 3, Problem 3DYKB
Summary Introduction
Introduction:
Enzymes are
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All of the following increase enzymatic activity except a. an increase in temperature. b. an increase in pH. c. an increase in concentration of the substrate. d. an increase in concentration of the enzyme that catalyzes the reaction.
As you change the temperature from a low temperature to a high temperature what happens to the rate of an enzymatic reaction, in general terms?
A
The reaction rate will steadily increase as the temperature increases.
B
The reaction rate will steadily decrease as the temperature increases.
C
The reaction rate will start low, then increase, and then decrease again as the temperature increases.
D
The reaction rate will not change as the temperature increases.
When an enzymatic reaction is in progress, do you expect to see happen to the amount of substrate?
A
It will increase as the reaction proceeds.
B
It will decrease as the reaction proceeds.
C
The amount will not change as reaction proceeds.
D
It is not possible to predict what will happen to it as the reaction proceeds.
Chapter 3 Solutions
Connect with Learnsmart Labs Access Anatomy & Physiology : An Integrative Approach
Ch. 3.1 - Both the movement of Na+ down its concentration...Ch. 3.1 - Muscle contraction is an example of what form of...Ch. 3.1 - Prob. 3WDYLCh. 3.2 - Prob. 4WDYLCh. 3.2 - For a biochemical reaction that involves simple...Ch. 3.2 - What molecule is formed from exergonic reactions...Ch. 3.2 - Explain what occurs when the equilibrium is...Ch. 3.2 - Explain the effect a fever would have on chemical...Ch. 3.2 - What is the relationship of enzymes and activation...Ch. 3.3 - What is the active site of an enzyme and how does...
Ch. 3.3 - What is the mechanism of enzyme action, including...Ch. 3.3 - Explain how enzymes are generally named.Ch. 3.3 - How do changes in substrate concentration,...Ch. 3.3 - How are enzymes regulated through competitive and...Ch. 3.3 - Prob. 15WDYLCh. 3.3 - Prob. 16WDYLCh. 3.4 - Prob. 17WDYLCh. 3.4 - Prob. 18WDYLCh. 3.4 - Prob. 19WDYLCh. 3.4 - Prob. 20WDYLCh. 3.4 - Prob. 21WDYLCh. 3.4 - Prob. 22WDYLCh. 3.4 - Prob. 23WDYLCh. 3.4 - Prob. 24WDYLCh. 3.4 - Prob. 25WDYLCh. 3.4 - Prob. 26WDYLCh. 3.4 - Prob. 27WDYLCh. 3.4 - Prob. 28WDYLCh. 3 - Energy in ATP is used to power skeletal muscle...Ch. 3 - Prob. 2DYKBCh. 3 - Prob. 3DYKBCh. 3 - ATP inhibits phosphofructokinase by binding to an...Ch. 3 - All of the following are accurate about enzymes...Ch. 3 - Prob. 6DYKBCh. 3 - Prob. 7DYKBCh. 3 - All stages of cellular respiration are decreased...Ch. 3 - Prob. 9DYKBCh. 3 - Prob. 10DYKBCh. 3 - Prob. 11DYKBCh. 3 - Describe the different ways of classifying...Ch. 3 - Prob. 13DYKBCh. 3 - Describe the structure and mechanism of enzymes.Ch. 3 - Prob. 15DYKBCh. 3 - Prob. 16DYKBCh. 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. 20DYKBCh. 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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- Enzymes have similar responses to both changes in temperature and pH. The effect of both is on the a. rate of movement of the substrate molecules. b. strength of the chemical bonds within the substrate. c. three-dimensional shape of the enzyme. d. rate of movement of the enzyme.arrow_forwardAs you change the pH from a low pH to a high pH what happens to the rate of an enzymatic reaction, in general terms? A The reaction rate will steadily increase as the pH increases. B The reaction rate will steadily decrease as the pH increases. C The reaction rate will start low, then increase, and then decrease again as the pH increases. D The reaction rate will not change as the pH increases.arrow_forwardWhat is it called when the final product of an enzymatic pathway acts as a modulator for the first enzyme in the pathway? a. isoenzyme activation b. relative specificity c. feed back inhibition d. competitive inhibitionarrow_forward
- Define the following as they apply to an enzymatic reaction. Give an example of each. a. Enzyme-limited: b. Substrate-limited:arrow_forwardWhen an enzymatic reaction is in progress, do you expect to see happen to the amount of product? A It will increase as the reaction proceeds. B It will decrease as the reaction proceeds. C The amount will not change as reaction proceeds. D It is not possible to predict what will happen to it as the reaction proceeds.arrow_forwardWhich of the following statements is false? Enzymesa) bind to substrates.b) lower the energy of activation.c) convert coenzymes to products.d) speed up biochemical reactions.e) can be named after the kinds of reaction they catalyze.arrow_forward
- Carbonic anhydrase catalyzes the reaction between carbon dioxide and water to produce carbonic acid. Zn+2 cation assists in the catalytic process. Which function does carbon dioxide play in this process? A) It is an enzyme b) It is a substrate c) it is a cofactor d) it is the active site Carbonic anhydrase catalyzes the reaction between carbon dioxide and water to produce carbonic acid. Zn+2 cation assists in the catalytic process. Which function does Zn+2 cation play in this process? A) It is an enzyme b) It is a substrate c) it is a cofactor d) it is the active site The amino acids Asp, Ser, His and Glu, which are part of the polypeptide chain, bind to both carbon dioxide and Zn+2 cation during the catalytic process. Which role are these amino acids playing in the catalytic process? A) they are prosthetic groups b) they are coenzymes. C) they are reaction products d) They are found in the active site Kinases catalyze the transfer of which group from one…arrow_forwardWhen substrate concentration [S] << Km, the rate of an enzymatic reaction is increased by A. increasing kcat/Km B. increasing total enzyme concentration C. increasing [S] D. A and B E. A, B and C increasing kcat/Km increasing total enzyme concentration increasing [S] A and B A, B and Carrow_forwardWhich of the following statement regarding enzymes is false? a.) they speed up reaction rates b.) they work within narrow temperature and pH ranges c.) The active site binds the substarate d.) They are consumed in the reactions they catalyzearrow_forward
- Which of the following is true about cell potential? a. It is the sum of the oxidation and reduction potentials b. It is the average of the oxidation and reduction potentials c. It is the reduction potential multiplied by the oxidation potential. d. It is the difference between the reduction and oxidation potentials.arrow_forward(a) Give the substrate for each of the following enzymes: (i) urease (ii) fructose oxidase (b) What is the difference between competitive and noncompetitive inhibition? (c) In feedback control, what type of regulator slows down the catalytic activity of the reaction series? Why aren't intermediate products in a reaction sequence used in feedback control?arrow_forwardWhich of the following statements about non-competitive inhibitors is true? A) They bind at the active site of the enzyme and block access to the substrate. B) They bind at a location away from the active site. C) They function by changing the shape of the enzyme's active site. D) B and Carrow_forward
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