Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 9, Problem 17RQ
What is the effect of an inhibitor binding an enzyme?
- The enzyme is degraded.
- The enzyme is activated.
- The enzyme is inactivated.
- The complex is transported out of the cell
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Students have asked these similar questions
What distinguishes an inhibitor from an inactivator?
PMSF is a protease inhibitor that binds to enzyme active site. What is the
possible mode of inhibition?
Competitive
O Irreversible
O Non-competitive
O Mixed
The site where a noncompetitive inhibitor
binds to an enzyme is called:
Active site
Receptor site
Coenzyme
O Allosteric site
Enzyme linked receptors:
Chapter 9 Solutions
Biology 2e
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- Why are irreversible enzyme inhibitors referred to as poisons?arrow_forwardIn the diagram below, the orange circle represents an effector and the dark purple shapes (both the diamond and the rod) represent a substrate. Based on this information, which statement(s) about the diagram is/are true? Select all that apply. A Allosteric site B Allosteric site C Allosteric site Allosteric effector Active site Allosteric effector Active site, Allosteric effector Novel binding sitearrow_forwardWhich of the following statements is/are correct?a) Enzyme quantities depend on the rate of their synthesis and degradationb) Enzyme quantity is decreased if an amino-acid involved in the catalytic activity is modifiedc) Protein kinase A activity is regulated through protein interaction.d) Kinases control the activity of other enzymes by covalent modification; irreversiblephosphorylation explain each of the following optionarrow_forward
- Inducers and repressors Both of them increase in the rate of enzyme synthesis Both of them decrease in the rate of enzyme synthesis They control the enzyme quantity They control the enzyme activityarrow_forwardWhen protein kinase A (PKA) is inactive, which of the following statements is true? ATP is bound to the regulatory subunit to inhibit subunit dissociation. CAMP is bound to the catalytic site to inhibit the regulatory subunit. The regulatory subunit has cyclic GMP bound in place of cyclic AMP. The intrinisic pseudosubstrate peptide is bound to the active site.arrow_forwardWhich protein of the following has a catalytic role? Antibody Enzyme Collagen Hormonearrow_forward
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