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Worksheets

Food Spoilage and Contamination

Total questions: 25

Worksheet time: 19mins

Name
Class
Date
1.

Identify three micro-organisms responsible for contamination of food

a)

Bacteria, yeast, moulds,

b)

Yeast, fungi, bacteria

c)

Mould, yeast,fungi

2.

Bacteria in general needs four things to grow they are?

a)

water, heat, air, soil

b)

water, air, warmth, moisture

c)

warmth, time, moisture, food

d)

warmth, air, time, light

3.
The deterioration in the color, flavor, odor, or consistency of a food product is ?
a)
Food contamination
b)
Food poisoning
c)
Food spoilage
4.
The are two main causes of food spoilage are
 Natural decay and action of microorganisms.
a)
True
b)
False
5.
All microorganisms are bad. [ex. Parasites, viruses, yeasts, molds]
a)
False
b)
True
6.

Ripening is an example of natural decay.

a)

True

b)

False

7.

Enzymes cause which types of food to ripen?

a)

Meat and fish

b)

Fruit and vegetables

c)

Poultry and cheese

d)

Vegetables and pastries

8.

Which micro-organism is used to make bread?

a)

Mould

b)

Enzyme

c)

Bacteria

d)

Yeast

9.

High-risk foods allow harmful micro-organisms to grow and multiply because they:

a)

Contain a lot of moisture and protein

b)

Contain a lot of sugar

c)

Contain a lot of preservatives

d)

Contain a lot of air

10.

When micro-organisms come into contact with food and make it unsafe to eat, the food is said to be:

a)

Conserved

b)

Contaminated

c)

Concentrated

d)

Condensed

11.

Food can spoil. How can you determine the food was spoiled?

a)

when the food was in the garbage bin

b)

Have bad smell ,the color and the texture changed

c)

have dark color and moist

d)

when the food stored in the fridge more than 1 week.

12.

Which one factor can you see on the spoiled bread?

a)

mold on the surface of the bread

b)

sour taste

c)

the color turned to greenish

d)

smell like fish

13.

Name two factors that contribute to food spoilage?

a)

Decay and deteriorate

b)

Decay and Microorganism

c)

Yeast and moulds

d)

steam and heat

14.

Which of these is an example of enzymatic actions?

a)

Banana turning brown

b)

cake getting brown

c)

bread when toast

d)

inside of a chocolate cake

15.

Which food will spoil the slowest

a)

dried beans

b)

milk

c)

butter

d)

eggs

16.
Perishable foods should not be allowed to stand at room temperature for more than:
a)
1 hour
 
b)
2 hours
c)
4 hours
d)
8 hours
17.

Which of these could be signs of food spoilage?

a)

Mould growth on fruits

b)

Loaf of bread that have hardened over time

c)

Over ripen fruit

d)

All of the above

18.

It is the transfer of bacteria or other microorganisms from one substance to another.

a)

Cross Contamination

b)

Food Poisoning

c)

Foodborne Illness

19.

Adding contaminated foods to non-contaminated foods

a)

Equipment to food contamination

b)

Food to food contamination

c)

People to food contamination

20.

Bacteria on surfaces like countertops, utensils and cutting boards can contaminate the food

a)

Equipment to food contamination

b)

Food to food contamination

c)

People to food contamination

21.

Happens when a food becomes contaminated by some kind of chemical substance.

a)

Physical contamination

b)

Microbial contamination

c)

Chemical contamination

22.

Happens when a food has been contaminated by microorganisms.

a)

Physical contamination

b)

Microbial contamination

c)

Chemical contamination

23.

Happens when food has been contaminated by a foreign object.

a)

Physical contamination

b)

Allergenic contamination

c)

Chemical contamination

24.

Occurs when a food that causes an allergic reaction comes into contact with another food.

a)

Physical contamination

b)

Allergenic contamination

c)

Chemical contamination

25.

Transfers of bacteria from our body or clothes to food during many steps of food preparation.

a)

Equipment to food contamination

b)

People to food contamination

c)

Food to food contamination