Podcast
Questions and Answers
Which form of the allosteric enzyme do substrates bind more readily to?
Which form of the allosteric enzyme do substrates bind more readily to?
- Both T and R forms equally
- T form
- R form (correct)
- Neither T nor R form
At low substrate concentrations, why is it difficult for substrate to bind to the T form of allosteric enzymes?
At low substrate concentrations, why is it difficult for substrate to bind to the T form of allosteric enzymes?
- T form has a higher affinity for substrates
- T form is less prevalent than R form (correct)
- T form is more stable than R form
- T form undergoes conformational changes
What effect does a positive effector have on the threshold concentration level of substrate needed for activity in allosteric enzymes?
What effect does a positive effector have on the threshold concentration level of substrate needed for activity in allosteric enzymes?
- Lowers the threshold concentration level (correct)
- Raises the threshold concentration level
- Has no effect on the threshold concentration level
- Changes the enzyme's kinetics
In allosteric enzymes, what effect do negative effectors have on the binding of substrates?
In allosteric enzymes, what effect do negative effectors have on the binding of substrates?
How do heterotropic effects influence the allosteric enzyme's reaction rate?
How do heterotropic effects influence the allosteric enzyme's reaction rate?
What does the sequential model propose about the structure changes in subunits of allosteric enzymes?
What does the sequential model propose about the structure changes in subunits of allosteric enzymes?
What effect does negative cooperativity have on the binding of additional substrate molecules in allosteric enzymes?
What effect does negative cooperativity have on the binding of additional substrate molecules in allosteric enzymes?
How do positive effectors affect the equilibrium between T and R forms of allosteric enzymes?
How do positive effectors affect the equilibrium between T and R forms of allosteric enzymes?
How does cooperativity affect enzyme activity in allosteric enzymes?
How does cooperativity affect enzyme activity in allosteric enzymes?
What is the main difference between homotropic effects and heterotropic effects in allosteric enzymes?
What is the main difference between homotropic effects and heterotropic effects in allosteric enzymes?
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