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Which of the following best describes the mechanism of action of an allosteric …
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Wize University Biology Textbook > Energy & Metabolism
Enzyme Regulation
5 Activities
Which of the following best describes the mechanism of action of an allosteric inhibitor?
The chemical binds the active site of the enzyme and blocks the substrate from interacting with the enzyme
The chemical binds a cleft on the enzyme changing the the shape of the active site so it can no longer bind the substrate
The chemical binds a cleft on the enzyme and physically inhibits the substrate from interacting with the enzyme
Allosteric inhibitors bind the substrate, not allowing it to interact with the enzyme
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More Enzyme Regulation Questions:
Irreversible Inhibition
Which statement is FALSE about methods of irreversible inhibition.
Allosteric Enzymes
What statement is TRUE about allosteric enzymes?
Regulating enzymes
Which statement is TRUE about enzyme regulation?
Wize Exam Practice Questions:
Which of the following enzymes catalyzes a reversible reaction?
Practice: Enzyme Catalyzed Reactions
What is FALSE about this energy diagram of an uncatalyzed reaction?
A molecule that binds at a site on the enzyme that is different than where the substrate binds and decreases the enzyme’s activity:
i. Is an allosteric inhibitor
ii. Positively regulates the enzyme’s activity
Allosteric Enzymes
What statement is TRUE about allosteric enzymes?
Regulating enzymes
Which statement is TRUE about enzyme regulation?
Irreversible Inhibition
Which statement is FALSE about methods of irreversible inhibition.
Which of the following can be concluded about an enzymes reaction rate? - Practice Question
Given the below figure showing the rate of reaction of an enzyme, which of the following can be concluded? (Select all that apply)
Which of the following are TRUE of allosteric inhibitors?
Anti-cancer antibodies are often used as a chemotherapeutic agent. They act by binding cell surface receptors, like Epidermal Growth Factor Receptor, whose aberrant activation leads to increase cellular proliferation. How are these antibodies affecting the protein interactions at the cell surface of these cancer cells?
Which of the following best describes the protein characterized by the following function?
Which of the following can be concluded about an enzymes reaction rate? - Practice Question
Given the below figure showing the rate of reaction of an enzyme, which of the following can be concluded?
Which of the following enzymes catalyzes a reversible reaction?
Practice: Metabolism Regulation
When AMP binds to glycogen phosphorylase it's enzymatic activity increases. This is an example of what kind of metabolic regulation?
Which of the following would positively affect an enzyme's activity?
Which of the following binds to the enzyme-substrate complex?
How does an uncompetitive inhibitor work?
Which of the following can bind distal to the active site of an enzyme?
Which of the following does not always enter an enzyme active site?
Protein 1 produces substrate A, and Protein 2 turns substrate A into substrate B. Substrate B binds to the enzyme-substrate complex of protein 1 and prevents production of substrate B. What is going on here?
Which of the following is true regarding enzyme inhibitors?
Practice: Enzyme Inhibitors
lnvirase and Nevirapine are both drugs used to treat HIV. Invirase is a competitive inhibitor of HIV protease and nevirapine is a non-competitive inhibitor of reverse transcriptase. If the blue line in the graph below represents uninhibited enzyme activity, which line represents Invirase activity (orange or green)?