BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 4, Problem 5MCQ
Summary Introduction
Introduction:
An enzyme is a protein which increases the rate of a reaction without being utilized in the reaction. Some of the enzymes are also made up of RNA, but primarily it is made up of proteins. Enzyme-catalyzed reactions occur at a faster rate than the reactions in which enzymes are not involved.
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What 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 reaction
Explain the effect of an enzyme on the activation energy of a chemical reaction.
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
Chapter 4 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 4.1 - Describe how your body has potential and kinetic...Ch. 4.1 - Prob. 2MCCh. 4.2 - Prob. 1MCCh. 4.2 - Prob. 2MCCh. 4.2 - Prob. 3MCCh. 4.3 - Prob. 1MCCh. 4.3 - Describe the relationship between energy-requiring...Ch. 4.4 - Prob. 1MCCh. 4.4 - Prob. 2MCCh. 4.4 - What is the role of negative feedback in enzyme...
Ch. 4.4 - Prob. 4MCCh. 4.5 - Prob. 1MCCh. 4.5 - What types of substances diffuse freely across a...Ch. 4.5 - What would happen to a plant cell in a hypertonic...Ch. 4.5 - Prob. 4MCCh. 4.5 - Prob. 5MCCh. 4.5 - Prob. 6MCCh. 4 - Prob. 1MCQCh. 4 - How does ATP participate in coupled reactions? a....Ch. 4 - How do proteins contribute to the function of an...Ch. 4 - Prob. 4MCQCh. 4 - Prob. 5MCQCh. 4 - Prob. 6MCQCh. 4 - Prob. 7MCQCh. 4 - Prob. 8MCQCh. 4 - How does ATP relate to membrane transport? a. The...Ch. 4 - Prob. 1WIOCh. 4 - Prob. 2WIOCh. 4 - Prob. 3WIOCh. 4 - Prob. 4WIOCh. 4 - Use what you know about enzymes to propose an...Ch. 4 - Considering that enzymes are essential to all...Ch. 4 - Prob. 7WIOCh. 4 - Prob. 8WIOCh. 4 - Prob. 9WIOCh. 4 - List three ways the content in this chapter...Ch. 4 - Golden knifefish use an electric field to detect...Ch. 4 - Review Burning Question 4.4, which explains how...Ch. 4 - Prob. 1PITCh. 4 - Prob. 2PITCh. 4 - Prob. 3PITCh. 4 - Prob. 4PIT
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- Which statement describes how enzymes and substrates are related? The enzyme influences the speed of change from substrate to product. Enzymes are released as substrates in a chemical reaction. An enzyme is a special kind of substrate in a chemical reaction. Substrates combine with enzymes to form reactants.arrow_forwardHow 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_forwarda. How does an enzyme speed up the reaction of a substrate? b. After the products have formed, what happens to the enzyme?arrow_forward
- Design a quantitative research experiment to investigate the influence of pH or temperature on the activity of an enzyme.arrow_forwardWhat is the minimum amount of energy required to start a chemical reaction? A. Activation energy B. Net energy input C. Potential energy D. Net energy outputarrow_forwardName and describe three ways discussed in class that enzymes lower the activation energy of a reaction A. B. C.arrow_forward
- 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.arrow_forwardEnzymes are catalysts that increase the rate of reactions by pulling two substrates together. lowering the energy of activation. binding to a substrate and releasing protons. binding to a substrate and producing energy.arrow_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
- Use the following illustration of a biochemical reaction to answer the questions below. a. Is this reaction spontaneous? Explain your answer. b. Is ATP required for this reaction to proceed? Explain.arrow_forwardExplain how enzymes work to speed up reactionsarrow_forwardExplain what would happen to a substrate molecule if it encountered an enzyme’s active site that matched its specific shape. Use the following terms in your answer: products, enzyme, substrate, active site.arrow_forward
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