Rewind Your Mind - Enzymes

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Fundamental enzyme concepts

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Alyssa Gatus

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Froggy Jumps Rewind Your Mind - EnzymesVersión en línea Fundamental enzyme concepts por Alyssa Gatus 1 What is the definition of an enzyme? a A reactant consumed in a reaction b A type of carbohydrate that stores energy c A biological catalyst that speeds up a chemical reaction 2 Where is the active site of an enzyme? a The area of the cell where enzymes are stored b The site where enzymes are synthesized c The region where the substrate binds 3 What effect does high temperature generally have on enzyme activity? a Always increases activity indefinitely b Increases rate up to a point, then denatures the enzyme c Always decreases activity from the start 4 Which model describes enzyme-substrate interaction with a flexible fit? a Induced fit model b Lock and key model c Substrate exclusion model 5 What is the role of cofactors in enzymatic reactions? a They are substrates used up in the reaction b They permanently alter the enzyme’s structure c They assist in enzyme activity; some are inorganic 6 What is competitive inhibition? a The substrate binds to the enzyme-substrate complex b A molecule changes the enzyme shape permanently c A molecule competes with the substrate for the active site 7 How does pH affect enzyme activity? a Optimal pH varies by enzyme; extreme pH can denature b All enzymes work best at pH 7.0 only c pH has no effect on enzymes 8 What is substrate specificity? a Enzymes can catalyze many unrelated reactions b Enzymes work on any molecule equally c Enzymes catalyze reactions for particular substrates 9 Which term describes the speed of an enzyme-catalyzed reaction? a Activation energy b Equilibrium constant c Reaction rate 10 What happens to an enzyme after denaturation? a It transforms into a different enzyme b It becomes more active c It loses its shape and becomes inactive

Froggy Jumps

Rewind Your Mind - EnzymesVersión en línea

Fundamental enzyme concepts

por Alyssa Gatus

What is the definition of an enzyme?

A reactant consumed in a reaction

A type of carbohydrate that stores energy

A biological catalyst that speeds up a chemical reaction

Where is the active site of an enzyme?

The area of the cell where enzymes are stored

The site where enzymes are synthesized

The region where the substrate binds

What effect does high temperature generally have on enzyme activity?

Always increases activity indefinitely

Increases rate up to a point, then denatures the enzyme

Always decreases activity from the start

Which model describes enzyme-substrate interaction with a flexible fit?

Induced fit model

Lock and key model

Substrate exclusion model

What is the role of cofactors in enzymatic reactions?

They are substrates used up in the reaction

They permanently alter the enzyme’s structure

They assist in enzyme activity; some are inorganic

What is competitive inhibition?

The substrate binds to the enzyme-substrate complex

A molecule changes the enzyme shape permanently

A molecule competes with the substrate for the active site

How does pH affect enzyme activity?

Optimal pH varies by enzyme; extreme pH can denature

All enzymes work best at pH 7.0 only

pH has no effect on enzymes

What is substrate specificity?

Enzymes can catalyze many unrelated reactions

Enzymes work on any molecule equally

Enzymes catalyze reactions for particular substrates

Which term describes the speed of an enzyme-catalyzed reaction?

Activation energy

Equilibrium constant

Reaction rate

What happens to an enzyme after denaturation?

It transforms into a different enzyme

It becomes more active

It loses its shape and becomes inactive

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Rewind Your Mind - Enzymes

Froggy Jumps

Sobre esta actividad

Creada por

Descarga la versión para jugar en papel

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Rewind Your Mind - EnzymesVersión en línea

por Alyssa Gatus

What is the definition of an enzyme?

Where is the active site of an enzyme?

What effect does high temperature generally have on enzyme activity?

Which model describes enzyme-substrate interaction with a flexible fit?

What is the role of cofactors in enzymatic reactions?

What is competitive inhibition?

How does pH affect enzyme activity?

What is substrate specificity?

Which term describes the speed of an enzyme-catalyzed reaction?

What happens to an enzyme after denaturation?

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