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Questions and Answers
Which enzyme is active even during fasting?
Which enzyme is active even during fasting?
- Hexokinase (correct)
- Neither Glucokinase nor Hexokinase
- Glucokinase
- Both Glucokinase and Hexokinase
Which enzyme needs lots of glucose to be activated?
Which enzyme needs lots of glucose to be activated?
- Neither Glucokinase nor Hexokinase
- Glucokinase (correct)
- Both Glucokinase and Hexokinase
- Hexokinase
What is the main role of glucokinase and hexokinase?
What is the main role of glucokinase and hexokinase?
- Both Glycolysis and Glycogenesis (correct)
- Neither Glycolysis nor Glycogenesis
- Glycolysis
- Glycogenesis
What pathway does hexokinase feed into if it can't do glycogenesis?
What pathway does hexokinase feed into if it can't do glycogenesis?
What does a low Km value indicate for an enzyme?
What does a low Km value indicate for an enzyme?
Why is hexokinase inhibited by glucose-6-P, but glucokinase is not?
Why is hexokinase inhibited by glucose-6-P, but glucokinase is not?
What is the general purpose of very efficient enzymes?
What is the general purpose of very efficient enzymes?
What are some applications of enzyme inhibition?
What are some applications of enzyme inhibition?
What type of reversible enzyme inhibition is characterized by binding of the inhibitor to the active site of the enzyme?
What type of reversible enzyme inhibition is characterized by binding of the inhibitor to the active site of the enzyme?
What does competitive inhibition do to the affinity of the enzyme for its substrate?
What does competitive inhibition do to the affinity of the enzyme for its substrate?
Which type of reversible enzyme inhibition involves binding of the inhibitor to the enzyme-substrate complex (ES)?
Which type of reversible enzyme inhibition involves binding of the inhibitor to the enzyme-substrate complex (ES)?
In uncompetitive inhibition, is the maximum reaction rate (Vmax) lower or higher in the presence of the inhibitor?
In uncompetitive inhibition, is the maximum reaction rate (Vmax) lower or higher in the presence of the inhibitor?
Does the affinity of the enzyme appear to go up or down in the presence of an uncompetitive inhibitor?
Does the affinity of the enzyme appear to go up or down in the presence of an uncompetitive inhibitor?
Which type of reversible enzyme inhibition involves binding of the inhibitor to either the enzyme or the enzyme-substrate complex (ES)?
Which type of reversible enzyme inhibition involves binding of the inhibitor to either the enzyme or the enzyme-substrate complex (ES)?
In noncompetitive inhibition, is the maximum reaction rate (Vmax) lower or higher in the presence of the inhibitor?
In noncompetitive inhibition, is the maximum reaction rate (Vmax) lower or higher in the presence of the inhibitor?
In noncompetitive inhibition, does the affinity of the enzyme appear to go up or down in the presence of the inhibitor?
In noncompetitive inhibition, does the affinity of the enzyme appear to go up or down in the presence of the inhibitor?
Which type of reversible enzyme inhibition involves binding of the inhibitor to the enzyme but not at the active site?
Which type of reversible enzyme inhibition involves binding of the inhibitor to the enzyme but not at the active site?
In mixed inhibition, is the maximum reaction rate (Vmax) lower or higher in the presence of the inhibitor?
In mixed inhibition, is the maximum reaction rate (Vmax) lower or higher in the presence of the inhibitor?
In mixed inhibition, does the affinity of the enzyme appear to go up or down in the presence of the inhibitor?
In mixed inhibition, does the affinity of the enzyme appear to go up or down in the presence of the inhibitor?
Which type of enzyme inhibition occurs when an inhibitor forms a covalent bond with the active site of the enzyme?
Which type of enzyme inhibition occurs when an inhibitor forms a covalent bond with the active site of the enzyme?
Which of the following best describes a first-order reaction?
Which of the following best describes a first-order reaction?
What is the key difference between glucokinase and hexokinase?
What is the key difference between glucokinase and hexokinase?
What is the purpose of a Lineweaver-Burk plot?
What is the purpose of a Lineweaver-Burk plot?
Which of the following best describes a zero-order reaction?
Which of the following best describes a zero-order reaction?
What is the definition of Km in Michaelis-Menten kinetics?
What is the definition of Km in Michaelis-Menten kinetics?
What is the definition of Vmax in Michaelis-Menten kinetics?
What is the definition of Vmax in Michaelis-Menten kinetics?
Which of the following best describes reversible inhibition?
Which of the following best describes reversible inhibition?
Which of the following best describes irreversible inhibition?
Which of the following best describes irreversible inhibition?
Which of the following best describes competitive inhibition?
Which of the following best describes competitive inhibition?
Which of the following best describes non-competitive inhibition?
Which of the following best describes non-competitive inhibition?
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