Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 6, Problem 13TYK
Summary Introduction
To review:
The molecular substance that accelerates the
Introduction:
Enzymes are a type of protein compounds that tend to accelerate the rate of a given reaction many folds. Enzymes have properties that allow them to bind to a substrate and to accelerate the rate of reaction by converting them into more products, as the reactions without enzymes produce only few products. Enzymes are also known to be substrate specific.
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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
In one word, describe the function of enzymes.
In one word, describe how enzymes affect the rate of biochemical reactions in our system.
Find an example of an enzyme. Answer the following questions about the enzyme that you chose.
a) What is the chemical reaction that is catalyzed by the enzyme?
b) Why is this enzyme/chemical reaction important to the organisms in which it occurs?
Chapter 6 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 6.1 - Prob. 1SBCh. 6.1 - In thermodynamics, what is meant by an isolated...Ch. 6.2 - Prob. 1SBCh. 6.2 - Prob. 2SBCh. 6.2 - Distinguish between exergonic and endergonic...Ch. 6.3 - Prob. 1SBCh. 6.3 - How are coupled reactions important to cell...Ch. 6.4 - How do enzymes increase the rates of the reaction...Ch. 6.4 - Can enzymes alter the G of a reaction?Ch. 6.5 - Prob. 1SB
Ch. 6.5 - What is the difference between competitive and...Ch. 6.5 - Prob. 3SBCh. 6.6 - Prob. 1SBCh. 6 - The capacity to do work best defines: a metabolic...Ch. 6 - The assembly of proteins from amino acids is best...Ch. 6 - When two glucose molecules react to form maltose:...Ch. 6 - When glucose reacts with ATP to form...Ch. 6 - In the following graph: A represents the product....Ch. 6 - Which of the following methods is not used by...Ch. 6 - In an enzymatic reaction: a. the enzyme leaves the...Ch. 6 - Which of the following statements about the...Ch. 6 - Which of the following statements about inhibition...Ch. 6 - Which of the following statements is incorrect? a....Ch. 6 - Prob. 11TYKCh. 6 - Discuss Concepts Trace the flow of energy through...Ch. 6 - Prob. 13TYKCh. 6 - Prob. 14TYKCh. 6 - Prob. 15TYKCh. 6 - Prob. 16TYKCh. 6 - Prob. 17TYKCh. 6 - Prob. 1ITDCh. 6 - Prob. 2ITDCh. 6 - Prob. 3ITD
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- Which statement best summarizes the structure of an enzyme before and after it catalyzes a reaction? a.) Its structure is the same. b.) It gains a water molecule in the reaction. c.) It loses a carbon atom in the reaction. d.) It loses a hydrogen atom in the reaction,arrow_forwardMake a graphical representation of activation energy and change of free energy in a reaction and compare it with a graph showing the work of enzyme in lowering the activation energy of a reaction.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
- How does an enzyme lower the activation energy of a reaction? Draw a graph showing the difference of activation energy of a reaction with and without the help of an enzyme.arrow_forwardIn detail explain the one gene/ one enzyme hypothesis using one or more examplearrow_forwardA biologist investigating enzyme function plotted the activity of a particular enzyme (y-axis) vs pH (x-axis). Experiment A was performed at 30 oC, experiment B at 10 oC and experiment C at 100 oC. Experiments A, B, and C all used the same type of enzyme, they simple tested the enzyme's activity at different temperatures. Using your knowledge of enzyme activity, answer the questions based on the results shown in the graph. (Answer question B) Graph included B. Why is there no hill in the middle of line C?arrow_forward
- If you wanted to improve the catalytic efficiency of an enzyme, what changes might you make to the enzyme and why? Consider what factors affect catalysis. You can suggest a change in the environment or a change in the protein itself.arrow_forwardWith regard to enzymes, why are vitamins and minerals necessary for good health? Give examples.arrow_forwardHow can you change the ability of an enzyme to catalyze a reaction, write two different points.arrow_forward
- Construct a hypothesis addressing the effect concentration will have on rate of reaction. What chemical reaction is being catalyzed in the experiment? Label the substrate(s), enzyme, and product(s). Did your actual results match your hypotheses? If not, why?arrow_forwardBased on the given question which of the following choices is the correct answer?A. When an enzyme catalyzes a reaction, it increases the activation energy of the reactionB. When an enzyme catalyzes a reaction, it decreases the activation energy of the reactionC. When an enzyme catalyzes a reaction, it increases the activation energy of the productD. When an enzyme catalyzes a reaction, it does not affect the activation energy of the reaction.arrow_forwarddraw the enzyme binding pocket and active site draw the curved arrows showing the reaction proceeding toward the products show how the enzyme facilitates the reaction write a description of how the enzyme works Propose a name for the enzyme based on the rules from classarrow_forward
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