Podcast
Questions and Answers
Which of the following molecules acts as an inhibitor for Hexokinase?
Which of the following molecules acts as an inhibitor for Hexokinase?
- Fructose-6-phosphate
- AMP
- ADP
- Glucose-6-phosphate (correct)
What is the effect of Fructose-2,6-bisphosphate on PFK-1?
What is the effect of Fructose-2,6-bisphosphate on PFK-1?
- It converts the enzyme into an inactive form
- It activates the enzyme (correct)
- It inhibits the enzyme
- It has no effect on the enzyme
Which of the following compounds would likely reduce the activity of Pyruvate kinase?
Which of the following compounds would likely reduce the activity of Pyruvate kinase?
- NADH
- Fructose-1,6-bisphosphate
- ATP (correct)
- AMP
Which of the following is NOT an activator of Hexokinase?
Which of the following is NOT an activator of Hexokinase?
Which pair correctly matches an enzyme with its activators?
Which pair correctly matches an enzyme with its activators?
Which compound listed acts as an activator for Pyruvate kinase?
Which compound listed acts as an activator for Pyruvate kinase?
What is a common inhibitor of PFK-1?
What is a common inhibitor of PFK-1?
Which statement about Hexokinase is true?
Which statement about Hexokinase is true?
Which of the following activators stimulates PFK-1 the most effectively?
Which of the following activators stimulates PFK-1 the most effectively?
Identify the molecule that acts as an inhibitor for Pyruvate kinase.
Identify the molecule that acts as an inhibitor for Pyruvate kinase.
Flashcards
Hexokinase activator
Hexokinase activator
AMP, ADP, inorganic phosphate ($P_i$), and fructose-6-phosphate activate hexokinase.
Hexokinase inhibitor
Hexokinase inhibitor
Glucose-6-phosphate inhibits hexokinase.
PFK-1 activator
PFK-1 activator
Fructose-2,6-bisphosphate activates phosphofructokinase-1 (PFK-1).
PFK-1 inhibitor
PFK-1 inhibitor
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Pyruvate kinase inhibitor
Pyruvate kinase inhibitor
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Hexokinase activator
Hexokinase activator
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PFK-1 activator
PFK-1 activator
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PFK-1 inhibitor
PFK-1 inhibitor
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Pyruvate kinase activator?
Pyruvate kinase activator?
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Pyruvate kinase inhibitor?
Pyruvate kinase inhibitor?
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Study Notes
Enzyme Activators and Inhibitors
-
Hexokinase:
- Activators: AMP, ADP, Pi
- Inhibitor: Glucose-6-phosphate
-
PFK-1:
- Activator: Fructose-2,6-bisphosphate
- Inhibitors: NADH, Citrate, ATP
-
Pyruvate kinase:
- Activators: AMP, Fructose-1,6-bisphosphate
- Inhibitors: ATP, Acetyl-CoA
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Description
Test your knowledge on enzyme activators and inhibitors related to key enzymes like hexokinase, PFK-1, and pyruvate kinase. This quiz covers the roles of various molecules that stimulate or inhibit these enzymes, essential for understanding metabolic pathways.
