Enzymes

Enzymes

10th Grade

10 Qs

quiz-placeholder

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Enzymes

Enzymes

Assessment

Passage

Biology

10th Grade

Medium

Created by

Ferdinand Estrella

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What role do enzymes play in chemical reactions?

They speed up the rates of reaction

They permanently change during the reaction

They reduce the amount of products formed

They increase the activation energy

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are enzymes known as biological catalysts?

Because they can only catalyze biological reactions

Because they are consumed in the reaction

Because they lower the activation energy of the reaction

Because they are only found in living organisms

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do enzymes and substrates interact?

By changing the shape of the substrate

By increasing the temperature of the substrate

By permanently binding to each other

By moving randomly until they collide at the right speed and orientation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the 'lock and key' mechanism?

A method to lock the enzyme's active site

A theory that explains how enzymes are destroyed

A mechanism where the enzyme and substrate fit together perfectly

A process to synthesize enzymes artificially

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to enzymes after the reaction?

They are destroyed

They become part of the product

They are unchanged and can be reused

They convert into substrates

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the effect of temperature on enzyme activity?

Temperature has no effect on enzyme activity

Decreasing temperature always increases enzyme activity

Enzymes are most active at freezing temperatures

Increasing temperature increases activity to a point, then decreases due to denaturation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of catalase enzymes?

To synthesize hydrogen peroxide

To break down hydrogen peroxide into water and oxygen

To transport hydrogen peroxide out of the cell

To increase the concentration of hydrogen peroxide

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