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8A.4 Digestive Enzymes

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

Select the correct definition of a enzyme.

a)

A protein which slows down reactions.

b)

A protein which speeds up reactions.

c)

A protein which blocks reactions.

d)

A protein which delays reactions.

2.

Write down ONE place in the body where digestive enzymes are made (make sure you spell it correctly!)

(a)  

3.

Select the enzyme which breaks down protein.

a)

Protease

b)

Lipase

c)

Carbohydrase

d)

Amylase

4.

Select the enzyme which breaks down lipids (fats).

a)

Protease

b)

Lipase

c)

Carbohydrase

d)

Amylase

5.

Select the enzyme which breaks down carbohydrates.

a)

Protease

b)

Lipase

c)

Carbohydrase

d)

Amylase

6.

Select the enzyme which breaks down starch.

a)

Protease

b)

Lipase

c)

Carbohydrase

d)

Amylase

7.

Suggest why enzymes can't work at high temperatures.

a)

They melt.

b)

They feel hot.

c)

They are destroyed.

d)

They migrate.

8.

How do enzymes help digestion?

a)

They break large molecules into smaller ones.

b)

They join small molecules together.

c)

They pull molecules together.

d)

They eat large molecules.

9.

Select a disadvantage of using enzymes to wash our clothes.

a)

We can wash clothes at a lower temperature.

b)

We can save money.

c)

We are more likely to break down stains.

d)

Some people may have an allergic reaction.

10.

Write down the missing word.


Enzymes speed up reactions because they reduce the amount of (a)   we need for a reaction.