LAB MANUAL FOR HUMAN A&P MAIN VERSION
4th Edition
ISBN: 9781266871016
Author: Martin
Publisher: MCG
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Textbook Question
Chapter 55, Problem 5PL
As temperatures decrease, enzyme activity
a. increases.
b. remains unchanged.
c. ceases.
d. decreases.
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Factors that affect the activity of an enzyme molecule includea. the potential energy stored in the reactant molecules.b. size of the cell.c. temperature and pH.d. entropy
An enzyme-substrate solution has been "poisoned" with a noncompetitive inhibitor. It is expected that the addition of more substrate to the solution will _____ the activity of the enzyme.
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When an enzyme catalyzes a reaction… A. The pH changes B. Substrate concentration is reduced C. Product concentration is reduced D. Substrate concentration is increased
Chapter 55 Solutions
LAB MANUAL FOR HUMAN A&P MAIN VERSION
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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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
- . Enzymes provide activation energy for the chemical reactions. * A. True B. Falsearrow_forwardWhich of these statements concerning enzymes is correct? a. Enzymes increase the rate of reactions but are permanently changed as a result. b. Enzymes are proteins that function as catalysts. c. Enzymes increase the activation energy requirement for a reaction to occur. d. Enzymes usually can only double the rate of a chemical reaction. e. Enzymes increase the kinetic energy of the reactants.arrow_forwardIn an inborn error of metabolism, a. a genetic change results in the production of a defective enzyme. b. intermediates produced prior to the defective step accumulate. c. alternate pathways are taken by intermediates at branch points that precede the defective step. d. All of these are true.arrow_forward
- 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_forwardWhich of the following is NOT true of enzymes? A. Made of protein B. Made of carbohydrates. C. React with a substrate D. Are not altered with reactions.arrow_forwardworks by breaking down foods in the diet or compounds in the body into their smaller components. Select one: a. Neither is correct b. Anabolism c. both of them d. Catabolismarrow_forward
- Which of the following statements regarding enzymes is true? A. Enzymes decrease the free energy change of a reaction. B. Enzymes cjange the direction of chemical reaction. C. Enzymes prevent changes in substrate concentrations. D. Enzymes increase the rate of a reaction. E. Enzymes are permanently altered by the reactions they catalyze.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_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
- Identify the conditions that may affect enzyme activity in a reaction. SELECT ALL THAT APPLY A. Increasing Temperature B. Decreasing Substrate C. Lack of coenzyme D. Decreasing pHarrow_forwardWhich of the following best describes the relationship between an enzyme and a substrate a. stable b. causes permanent alteration to the enzyme c. results from non-complimentary bonding d. are complimentaryarrow_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
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