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science grade 7

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.
One celled organism with a nucleus
a)
Bacteria
b)
Protists
c)
Fungi
d)
Virus
2.
One celled organisms with no nucleus
a)
Bacteria
b)
Protists
c)
Fungi
d)
Virus
3.
This is a type of fungus you can eat
a)
Mushrooms
b)
Mold
c)
Yogurt
d)
Pickles
4.
Most microorganisms cannot be seen without a...
a)
microscope
b)
magnifying lens
c)
telescope
d)
x-ray machine
5.
Which is a true statement?
a)
All microorganisms are harmful.
b)
All microorganisms are beneficial.
c)
Some microorganisms are harmful while others are beneficial.
d)
Microorganisms are beneficial only to humans.
6.
Yeast is used to make...
a)
rolls
b)
cakes
c)
pizza crust
d)
all of the above
7.
What is the cause of the common cold?
a)
bacteria
b)
cold temperatures
c)
sneezing and coughing
d)
viruses
8.
Yogurt and cheese  can be produced from ___________.
a)
Bacteria
b)
Virus
c)
Protozoa
d)
Algae
9.
The smallest microorganism on earth is known as  _____________
a)
a virus
b)
bacteria
c)
algae
d)
fungi
10.

Antibiotics are not useful against viral infections

a)

False

b)

True

11.

Which of these is a common symptom of food poisoning

a)

vomiting

b)

coughing

c)

sore throat

d)

aching muscles

12.
Most microorganisms cannot be seen without a...
a)
microscope
b)
magnifying lens
c)
telescope
d)
x-ray machine
13.
______________ helps us  digest our food and they produce needed vitamins.
a)
Bacteria
b)
Fungi
c)
Protozoa
d)
Algae
14.

Amoeba is an example of

a)

Virus

b)

Bacteria

c)

Protozoa

d)

Fungus

15.

Disease causing microorganisms are called

a)

Antibodies

b)

Vaccines

c)

Antigen

d)

Pathogen

16.

Which of these is not a microbe?

a)

yeast

b)

bacteria

c)

virus

d)

mould

17.

The study of micro-organisms is called

a)

microbiology

b)

biology

c)

science

d)

micros

18.

Question 2: Cold, influenza and most cough are caused by ___?

a)

Bacteria

b)

Viruses

c)

Fungi

d)

None of these

19.

Question 3: Antibiotics

a)

kill disease-causing microorganisms

b)

slow down the growth of disease-causing microorganisms

c)

convert sugar into alcohol

d)

speed up the growth of micoorganisms

20.

Question 5: The process of conversion of sugar into alcohol is known as ...

a)

Budding

b)

Fusion

c)

Fermentation

d)

Fixation

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