Exploring the Role and Function of Enzymes

Exploring the Role and Function of Enzymes

Assessment

Interactive Video

Biology

6th - 10th Grade

Medium

Created by

Amelia Wright

Used 27+ times

FREE Resource

Enzymes are crucial proteins or RNA that accelerate biochemical reactions by lowering activation energy. Discovered by Anselme Payen, they are highly specific, binding to substrates at their active sites. Enzymes may require cofactors to function, forming holoenzymes. Models like Lock and Key and Induced Fit explain enzyme-substrate interactions. Environmental factors such as temperature, pH, and concentrations affect enzyme activity. Inhibitors can block or alter enzyme function, with competitive and non-competitive types.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who discovered enzymes and what did he name them?

Robert Hooke, Reactants

Louis Pasteur, Ferments

Anselme Payen, Enzymes

Marie Curie, Catalysts

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary role of enzymes in biochemical reactions?

To increase the temperature of the reaction

To provide substrates for the reaction

To lower the activation energy required for the reaction

To change the pH of the reaction

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the specific site on an enzyme where the substrate binds called?

Reaction Site

Binding Site

Catalytic Site

Active Site

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are cofactors and what role do they play in enzyme function?

They are substrates that bind to enzymes

They are non-protein parts that assist in enzyme activity

They are inhibitors that block enzyme activity

They are products of enzyme reactions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which model suggests that the enzyme changes shape to fit the substrate more tightly?

Substrate Binding Model

Enzyme-Substrate Complex Model

Lock and Key Hypothesis

Induced Fit Hypothesis

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to enzymes at temperatures higher than 37°C?

They become more active

They denature and lose function

They change their substrate specificity

They become inhibitors

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does pH affect enzyme activity?

It always increases enzyme activity

It has no effect on enzyme activity

It only affects non-protein enzymes

It can denature enzymes at extreme values

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