Podcast
Questions and Answers
What is the role of enzymes in reducing activation energy?
What is the role of enzymes in reducing activation energy?
- Increasing the overall energy of the reaction
- Inducing changes in the Gibbs free energy of the reaction
- Facilitating collisions and binding of substrates (correct)
- Decreasing the specificity of the active site
How do enzymes achieve specificity in binding to substrates?
How do enzymes achieve specificity in binding to substrates?
- By increasing the size of the active site
- By altering the pH of the active site
- By reducing the reactivity of amino acid side chains
- By using precise 3-D shapes of the active site (correct)
What is the function of cofactors and coenzymes in enzyme action?
What is the function of cofactors and coenzymes in enzyme action?
- Acting as substrates for the enzyme
- Reducing the enzyme's specificity
- Increasing the enzyme's stability
- Aiding in catalyzing reactions (correct)
What is the main role of prosthetic groups in enzyme function?
What is the main role of prosthetic groups in enzyme function?
How do enzymes alter environments to promote catalysis?
How do enzymes alter environments to promote catalysis?
What is the mechanism of reversible inhibition involving covalent bonding?
What is the mechanism of reversible inhibition involving covalent bonding?
What is the regulation of a pathway by one of the products on this pathway known as?
What is the regulation of a pathway by one of the products on this pathway known as?
What type of molecule binds to the allosteric site of an enzyme and keeps the enzyme active or causes an increase in its activity?
What type of molecule binds to the allosteric site of an enzyme and keeps the enzyme active or causes an increase in its activity?
What happens to the rate of reaction as temperature increases above the optimal range for enzyme function?
What happens to the rate of reaction as temperature increases above the optimal range for enzyme function?
What happens to the rate of reaction as substrate concentration increases up to saturation levels?
What happens to the rate of reaction as substrate concentration increases up to saturation levels?
In redox reactions, which element typically undergoes reduction?
In redox reactions, which element typically undergoes reduction?
What is the primary pair of agents involved in cellular processes, with one form being the reduced form and the other being the oxidized form?
What is the primary pair of agents involved in cellular processes, with one form being the reduced form and the other being the oxidized form?
What type of reaction involves products containing more energy than the reactants and is considered non-spontaneous?
What type of reaction involves products containing more energy than the reactants and is considered non-spontaneous?
What does oxidation involve in a redox reaction?
What does oxidation involve in a redox reaction?
What is the role of dehydrogenase enzymes in cellular processes?
What is the role of dehydrogenase enzymes in cellular processes?
What happens to the rate of reaction as substrate concentration increases up to saturation levels?
What happens to the rate of reaction as substrate concentration increases up to saturation levels?
What do redox reactions involve in terms of energy transfer?
What do redox reactions involve in terms of energy transfer?
What is the transfer of electrons from one substance to another known as in a redox reaction?
What is the transfer of electrons from one substance to another known as in a redox reaction?
What is the oxidized form of coenzyme NADH?
What is the oxidized form of coenzyme NADH?
