Enzymes

Enzymes

9th Grade

15 Qs

quiz-placeholder

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Enzymes

Enzymes

Assessment

Quiz

Biology

9th Grade

Hard

NGSS
HS-LS1-1, HS-LS1-6, HS-LS1-7

Standards-aligned

Created by

Charles Martinez

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of an enzyme?

give permission for the reaction

speed up reactions

raise activation energy

control how many reactions occur

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens when enzymes are heated to a high temperature?

The enzymes die.

The enzymes' amino acid sequence changes.

The shapes of the enzyme are altered or denatured

The enzymes remain the same

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to an enzyme when it is denatured?

Activation energy is lowered.

It loses its shape.

It becomes stronger.

Activation energy is raised.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following conclusions can be drawn from this graph?

The optimum pH of the enzyme is 6.6.

The enzyme’s activity increases as pH increases 5.0 to 9.0

The optimum pH of the enzyme is 5.8

The enzyme’s activity is greater around pH of 8.0 .

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Most enzymes are composed of .....

Lipids

Proteins

Carbohydrates

Nucleic Acids

Tags

NGSS.HS-LS1-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Enzymes in your body probably work best at which of the following temperatures>

25oC

37oC

98oC

210oC

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where do substrates bind on an enzyme?

voltage-gated channels

calcium channels

surface receptor

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