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Questions and Answers
Which enzyme has a lower Vmax compared to glucokinase?
Which enzyme has a lower Vmax compared to glucokinase?
- Neither
- Both
- Not enough information provided
- Hexokinase (correct)
Which enzyme has a lower Km compared to glucokinase?
Which enzyme has a lower Km compared to glucokinase?
- Neither
- Both
- Hexokinase (correct)
- Not enough information provided
Which enzyme is turned off by high concentrations of glucose-6-P?
Which enzyme is turned off by high concentrations of glucose-6-P?
- Both
- Neither
- Glucokinase (correct)
- Hexokinase
What same reaction do both hexokinase and glucokinase catalyze?
What same reaction do both hexokinase and glucokinase catalyze?
What is the product of the reaction catalyzed by hexokinase and glucokinase used for?
What is the product of the reaction catalyzed by hexokinase and glucokinase used for?
Which line in the graph represents glucokinase?
Which line in the graph represents glucokinase?
Which intercept represents Vmax?
Which intercept represents Vmax?
Which intercept represents 1/2 Vmax?
Which intercept represents 1/2 Vmax?
Which intercept represents Km?
Which intercept represents Km?
What does the higher Km of glucokinase tell you about its affinity for glucose compared to hexokinase?
What does the higher Km of glucokinase tell you about its affinity for glucose compared to hexokinase?
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?
What type of inhibition occurs when an inhibitor binds to the active site of the enzyme and competes with the substrate for binding?
What type of inhibition occurs when an inhibitor binds to the active site of the enzyme and competes with the substrate for binding?
In competitive inhibition, does the affinity of the enzyme appear to go up or down in the presence of the inhibitor?
In competitive inhibition, does the affinity of the enzyme appear to go up or down in the presence of the inhibitor?
What type of inhibition occurs when an inhibitor binds to the enzyme-substrate complex and prevents the release of the product?
What type of inhibition occurs when an inhibitor binds to the enzyme-substrate complex and prevents the release of the product?
In uncompetitive inhibition, is Vmax lower or higher in the presence of the inhibitor?
In uncompetitive inhibition, is Vmax lower or higher in the presence of the inhibitor?
What type of inhibition occurs when an inhibitor binds to the enzyme or the enzyme-substrate complex at a site other than the active site?
What type of inhibition occurs when an inhibitor binds to the enzyme or the enzyme-substrate complex at a site other than the active site?
In noncompetitive inhibition, is Vmax lower or higher in the presence of the inhibitor?
In noncompetitive inhibition, is Vmax lower or higher in the presence of the inhibitor?
What happens when an activator binds to a multi-subunit allosteric enzyme?
What happens when an activator binds to a multi-subunit allosteric enzyme?
What effect does an inhibitor have on the substrate graph of a multi-subunit allosteric enzyme?
What effect does an inhibitor have on the substrate graph of a multi-subunit allosteric enzyme?
What does the term 'allosteric inhibition' tell us about where an inhibitor binds when it is acting as an inhibitor?
What does the term 'allosteric inhibition' tell us about where an inhibitor binds when it is acting as an inhibitor?
Which of the following is NOT an objective of the Kinetics section?
Which of the following is NOT an objective of the Kinetics section?
What is the main purpose of a Lineweaver-Burk plot?
What is the main purpose of a Lineweaver-Burk plot?
Which of the following reactions conforms to Michaelis-Menten kinetics?
Which of the following reactions conforms to Michaelis-Menten kinetics?
What is the difference between glucokinase and hexokinase?
What is the difference between glucokinase and hexokinase?
What does Kcat represent?
What does Kcat represent?
Which of the following is an example of physiologically efficient enzyme?
Which of the following is an example of physiologically efficient enzyme?
What is the difference between competitive, uncompetitive, and non-competitive inhibition?
What is the difference between competitive, uncompetitive, and non-competitive inhibition?
How does the graph of an allosteric enzyme change in the presence of an inhibitor?
How does the graph of an allosteric enzyme change in the presence of an inhibitor?
What is happening in a first order reaction?
What is happening in a first order reaction?
What is happening in a zero-order reaction?
What is happening in a zero-order reaction?
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