Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Textbook Question
Chapter 55, Problem 4PL
After an enzyme reaction is completed, the enzyme
a. is still available.
b. was structurally changed.
c. was denatured.
d. is part of the enzyme-substrate complex.
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Students have asked these similar questions
How does an enzyme affect a chemical reaction? Select all that apply.
A. Lowers the activation energy
B. Decreases the rate of the reaction
C. Increases the activation energy
D. Increases the rate of the reaction
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.
Enzymes catalyze a chemical reaction by
A. decreasing the amount of ATP required to activate a reaction
B. increasing the amount of ATP required to activate a reaction
C. slowing down the reaction to obtain more products
D. increasing the reaction to obtain more products
E. decreasing the amount of ATP required and obtaining more products.
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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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
- Which 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_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_forwardWhich of these statements about enzymes is true? a,Most proteins are enzymes. b.Most enzymes are proteins. c.Enzymes are changed by the reactions they catalyze. d.The active sites of enzymes have little specificity for substrates.arrow_forward
- 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.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_forwardWith regard to enzymes, why are vitamins and minerals necessary for good health? Give examples.arrow_forward
- Substance A is converted to substance B in a metabolic reaction. Which statement best describes the role of enzyme during this reaction? A. It dissolves substance A in the reaction medium. B. It speeds up the reaction without it being consumed in the process. C. It provides energy to the reaction system D. It adjusts the pH of the reaction medium.arrow_forwardWhat is the reason why the transition state of a catalyzed reaction is lower has lower energy compared to an uncatalyzed reaction? A. because enzymes only work at low temperatures B. because of favorable interactions with the substrate C. because of enthalpic interactions between the enzyme and the transition state D. A and Barrow_forwardWhat is the function of the active site of an enzyme? a. Involved in the catalytic reaction of the enzyme b. Inhibit the enzymatic activity c. Binding of regulators d. Binding of products after the reactionarrow_forward
- What 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_forwardWhat roles do enzymes play in nature? Group of answer choices A.They have a role in metabolic reactions B. They increase rates of reaction but do not shift the equilibrium formed between products and reactants C. They catalyze cellular processes D. All of the abovearrow_forwardIn a highly high-temperature environment, you placed an enzyme and some substrates. You've seen that there hasn't been any reaction. Applying what you have learned on enzyme activity, how would you explain what occurred? A. The enzyme was not placed at a pH level that would allow it to react at its maximum rate. B. There are not enough enzymes for the reaction to occur. C. The enzyme may have denatured or broken down due to the high temperature of the environment, resulting in no reaction. D. There are not enough substrates for reaction to occur. Substrate concentration affects enzyme activity. Determine what would occur when there are too many substrates and fewer enzymes? A. No enzyme activity would occur. B. The reaction rate would continuously increase. C. The reaction would speed up tremendously. D. Maximal rate of reaction would occur. Enzyme activity mainly involves the active site and the substrate. How would you compare the active site from the substrate? A. The substrate…arrow_forward
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