BIOLOGY:LIFE ON EARTH-W/ACCESS
11th Edition
ISBN: 9780134669076
Author: Audesirk
Publisher: PEARSON
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Chapter 6, Problem 6FTB
Summary Introduction
To review:
The given blank space in the statement, “some poisons and drugs act by __________ enzymes. When a drug is similar to the enzyme’s substrate, it acts as a(n) ________ inhibitor.”
Introduction:
Drugs and poisons can be harmful to organisms. The body has different defense mechanisms to clear out the poisons and drugs which enter into the body system. One of the ways in which drugs and poisons can cause harm to the system of body is, by disabling or inhibiting the activity of the enzymes present in the system.
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Check out a sample textbook solutionStudents have asked these similar questions
Which of the following statements about enzyme function is FALSE?
Enzymes change shape permanently after a reaction, and can’t be re-used.
Enzymes are types of proteins.
Enzymes are highly specific molecules.
Enzymes lower the activation energy of a reaction.
Enzymes bind to substrates a an area called the “active site."
The active site _______________.
a. is the compound that an enzyme reacts with during the chemical reaction.b. is where the reactants bind.c. is another term for “substrate.”d. is the term for an enzyme that has returned to its original state after achemical reaction.
What is the item labeled "B" in the above figure?
The enzyme
The substrate
The active site
The transition state
The product
Chapter 6 Solutions
BIOLOGY:LIFE ON EARTH-W/ACCESS
Ch. 6 - Which of the following is True? a. Enzymes...Ch. 6 -
2. Which is not an example of an exergonic...Ch. 6 - Which of the following is True? ATP is a long-term...Ch. 6 - Prob. 4MCCh. 6 - Which of the following is False? a. Allosteric...Ch. 6 -
1. According to the first law of thermodynamics,...Ch. 6 - Prob. 2FTBCh. 6 - Prob. 3FTBCh. 6 - The abbreviation ATP stands for ___. The molecule...Ch. 6 -
5. Enzymes are what type of biological molecule?...
Ch. 6 - Prob. 6FTBCh. 6 - Prob. 1RQCh. 6 -
2. Define potential energy and kinetic energy and...Ch. 6 -
3. Define metabolism, and explain how reactions...Ch. 6 - Prob. 4RQCh. 6 - Compare breaking down glucose in a cell to setting...Ch. 6 - Compare the mechanisms of competitive and...Ch. 6 - Describe the structure and function of enzymes....Ch. 6 - 1. While vacuuming, you show off by telling a...Ch. 6 - 2. Refute the following: “According to...Ch. 6 - Prob. 3AC
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- What is the item labeled "C" in the above figure? The reactant The substrate The active site The transition state The productarrow_forwardWhich of the following statements is not true about enzymes?* A. Enzymes are biological catalysts B. Enzymes as catalysts lowers the activation energy thus, speeds up the rate of reaction C. Enzymes are proteins D. Enzymes are highly specific E. None of the given optionsarrow_forwardAll of the following are accurate about enzymes except: A. Enzymes are typically globular proteins with an active site B. Enzymes decrease activation energy C. Enzymes can be used over and over to catalyze a substrate to a product D. Enzymes are versatile and can catalyze different types of chemical reactionsarrow_forward
- Which of the following is NOT true about enzymes? Enzymes are proteins Enzymes raise the activation energy of a chemical reaction Enzymes help a chemical reaction to occur more quickly Enzymes have an active site Enzymes may be controlled by feedback inhibitionarrow_forwardAn allosteric inhibitor does which of the following? a. Binds to an enzyme away from the active site and changes the conformation of the active site, increasing its affinity for substrate binding. b. Binds to the active site and blocks it from binding substrate. c. Binds to an enzyme away from the active site and changes the conformation of the active site, decreasing its affinity for the substrate. d. Binds directly to the active site and mimics the substrate.arrow_forwardWhich 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_forward
- Some poisons and drugs act by_________ enzymes.When a drug is similar to the enzyme’s substrate, it acts asa(n)_______ inhibitor.arrow_forward_________ fit is substrate binding which induces a conformational change in an enzyme, that improves the catalytic activity of that enzyme.arrow_forwardThe active site of an enzyme is a small portion of the enzyme molecule. What is the function of the rest of the huge molecule?arrow_forward
- Which of the following statements are incorrect? Enzymes and inorganic catalysts speed up reactions. Enzymes and inorganic catalysts are non-specific. Enzymatic activity can be regulated. Enzymes undo allosteric change and inorganic catalysts cannot.arrow_forwardAs the amount of substrate is increased in an enzyme-substrate reaction, which of the following will happen? the reaction is inhibited the amount of product increases. enzymes become denatured faster. enzymes work faster. the amount of enzyme also increases proportionally.arrow_forwardEnzymes in the in what part of the body are important in the metabolization of drugs? lungs muscles gastrointestinal tract brainarrow_forward
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