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Worksheets

01 digestion 2

Total questions: 25

Worksheet time: 19mins

Name
Class
Date
1.

Enzymes are usually made of

a)

Lipids

b)

Protein

c)

Carbohydrates

d)

Nucleic Acids

2.

Enzymes are responsible for-

a)

Speeding up reactions

b)

Giving the body energy

c)

Slowing down reactions

3.

Letter D...

a)

active site

b)

enzyme

c)

substrate

d)

products

4.

Letter B...

a)

active site

b)

enzyme

c)

substrate

d)

products

5.

Letter c...

a)

active site

b)

enzyme

c)

substrate

d)

products

6.

Each enzyme only has 1 substrate that will fit its active site.  What is this called?

a)

reusablility

b)

denaturation

c)

specificity

d)

fragility

7.

What is a substance called if it speeds up a chemical reaction?

a)

reusable

b)

catalyst

c)

specific

d)

fragile

8.

An enzyme speeds up a chemical reaction in the cell but can only be used once.  True or False? 

a)

true

b)

false

9.

What happens when enzymes are heated to a high temperature?

a)

The enzymes die.

b)

The shape of the enzymes are altered- 'denatured'

c)

The enzymes' amino acid sequence changes.

d)

The enzymes remain the same

10.
With what 3 letters do enzymes typically end?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
11.
What is another name for enzymes?
a)
chemical catalysts
b)
microorganisms
c)
biological catalysts
d)
inorganic catalysts
12.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
13.

Which 2 factors can affect the rate of enzyme activity?

a)

Light intensity

b)

Temperature

c)

pH

d)

Oxygen concentration

14.

Based on the graph, what temperature does this enzyme work best?

a)

15 C

b)

40 C

c)

30 C

d)

50 C

15.
How many glasses of water should you drink in a day?
a)
10-12
b)
8-10
c)
6-8
d)
4-6
16.

What diseases can you develop from an unhealthy diet?

a)

Asthma

b)

Heart disease

c)

Diabetes

d)

All of the above

17.

13.What is the nutrient rich in this kind of food?

a)

Zinc

b)

Folic acid

c)

Iron

18.
Your goal should be to have a _______________ plate. Fill in the missing word. 
a)
Balanced 
b)
Healthy 
c)
Heavy 
d)
Grain Filled 
19.
Which food groups should you have at least 5 portions of a day?
a)
Meat, Fish and meat alternatives
b)
Milk and Dairy
c)
Fat
d)
Fruit and vegetables
20.
What do fruits and vegetables provide us in out diets?
a)
protein
b)
carbohydrates
c)
vitamins and minerals
d)
energy
21.
Which food group contains the following: bread, cereal, potatoes.
a)
Protein
b)
Carbohydrates
c)
Fats
d)
Milk and Dairy
22.

Which nutrient does the Beans, Pulses, Fish, Eggs and Meat group provide?

a)

Fat

b)

Dairy foods

c)

Carbohydrates

d)

Protein

23.

Which nutrient does the Potatoes, Bread, Rice & Pasta group provide?

a)

Starchy carbohydrates

b)

Protein

c)

Energy

d)

Fat & sugar

24.

Which important mineral does the Dairy and alternatives food group provide?

a)

Fat

b)

Iron

c)

Calcium

d)

Strong bones & teeth

25.

What is the main reason that we need to eat protein?

a)

Growth & repair

b)

Fat

c)

Energy

d)

Growing

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