Metabolic Pathways and Enzymes Lesson 6.3 Quiz

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What is the effect of an inhibitor binding to an enzyme?

Decreases the enzyme's activity (correct)

Changes the shape of the substrate

Increases the enzyme's activity

Enhances the binding of the substrate to the active site

In which type of inhibition does the inhibitor bind at an allosteric site?

Noncompetitive inhibition (correct)

Competitive inhibition

NonCompetitive inhibition

Enzyme activation

What did Anselme Payen discover in 1833?

Enzyme activation

Enzyme cofactors

Diastase (correct)

Noncompetitive inhibition

How do enzymes reduce the energy of activation in a reaction?

By facilitating the reaction through interaction at the active site (A) Signup and view all the answers

Which environmental condition may influence enzyme activity?

Temperature (D) Signup and view all the answers

How do enzymes help regulate a metabolic pathway?

By decreasing the energy of activation (D) Signup and view all the answers

What is the purpose of the energy of activation in a chemical reaction?

To prevent molecules from spontaneously degrading (D) Signup and view all the answers

How does substrate concentration affect enzyme activity?

It increases enzyme activity due to more frequent collisions with the enzyme (D) Signup and view all the answers

Why are most enzymes optimized for a particular pH?

To ensure maximum enzyme activity (D) Signup and view all the answers

What effect does temperature have on enzyme activity?

It increases enzyme activity at warmer temperatures (A) Signup and view all the answers

What is the main role of enzymes in a metabolic pathway?

To prevent molecules from degrading spontaneously (D) Signup and view all the answers

How does substrate concentration affect enzyme activity?

It increases enzyme activity due to more frequent collisions with substrate molecules (B) Signup and view all the answers

What effect does temperature have on enzyme activity?

It decreases enzyme activity as it denatures and destroys enzymes (B) Signup and view all the answers

What is the purpose of the energy of activation in a chemical reaction?

To initiate the reaction by adding energy to at least one reactant (D) Signup and view all the answers

Which factor influences an enzyme's rate of reaction by optimizing protein digestion?

pH (A) Signup and view all the answers

What happens when an inhibitor binds to an enzyme?

It prevents the substrate from binding to the enzyme (B) Signup and view all the answers

What is the effect of temperature on enzyme activity?

It increases enzyme activity (C) Signup and view all the answers

In which type of inhibition does the inhibitor bind at an allosteric site?

Noncompetitive inhibition (C) Signup and view all the answers

What is the role of enzymes in metabolic pathways?

They increase the speed of chemical reactions (A) Signup and view all the answers

How do enzymes interact with a substrate to reduce the energy of activation?

By decreasing the energy of activation (C) Signup and view all the answers

Which environmental condition may influence enzyme activity?

pH and temperature (D) Signup and view all the answers

What effect does an inhibitor binding to an enzyme have?

It decreases enzyme activity (A) Signup and view all the answers

Why are most enzymes optimized for a particular pH?

To ensure maximum enzymatic activity (D) Signup and view all the answers

How does substrate concentration affect enzyme activity?

It increases enzyme activity up to a certain point (A) Signup and view all the answers

Metabolic Pathways and Enzymes Lesson 6.3 Quiz

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Questions and Answers

What is the effect of an inhibitor binding to an enzyme?

In which type of inhibition does the inhibitor bind at an allosteric site?

What did Anselme Payen discover in 1833?

How do enzymes reduce the energy of activation in a reaction?

Which environmental condition may influence enzyme activity?

How do enzymes help regulate a metabolic pathway?

What is the purpose of the energy of activation in a chemical reaction?

How does substrate concentration affect enzyme activity?

Why are most enzymes optimized for a particular pH?

What effect does temperature have on enzyme activity?

What is the main role of enzymes in a metabolic pathway?

How does substrate concentration affect enzyme activity?

What effect does temperature have on enzyme activity?

What is the purpose of the energy of activation in a chemical reaction?

Which factor influences an enzyme's rate of reaction by optimizing protein digestion?

What happens when an inhibitor binds to an enzyme?

What is the effect of temperature on enzyme activity?

In which type of inhibition does the inhibitor bind at an allosteric site?

What is the role of enzymes in metabolic pathways?

How do enzymes interact with a substrate to reduce the energy of activation?

Which environmental condition may influence enzyme activity?

What effect does an inhibitor binding to an enzyme have?

Why are most enzymes optimized for a particular pH?

How does substrate concentration affect enzyme activity?

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