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Worksheets

MICROSCOPIC ORGANISMS

Total questions: 16

Worksheet time: 16mins

Name
Class
Date
1.

Which statement is true about viruses?

a)

Viruses can eat and metabolize food.

b)

Viruses can reproduce only using a host cell.

c)

Viruses can reproduce on their own at any time.

d)

Viruses contain DNA, so they are alive.

2.

What type of cells contain a nucleus?

a)

bacterial cells

b)

virus cells

c)

prokaryotic cells

d)

eukaryotic cells

3.

A bacterium reproduces asexually by dividing to form two new bacterial cells. What is the name of the process by which bacteria reproduce?

a)

meiosis

b)

mitosis

c)

budding

d)

binary fission

4.

Which of the following is true?

a)

Viruses and bacteria are both prokaryotes.

b)

Bacteria are eukaryotes and viruses are prokaryotes.

c)

Some bacteria are prokaryotes and some are eukaryotes.

d)

All bacteria are prokaryotes.

5.

What do viruses need to reproduce?

a)

Genetic material

b)

A host cell

c)

Bacteria

d)

Insulin

6.

How big is bacteria???

a)

Bigger than a cell

b)

Smaller than a cell

7.

True or false? Some bacteria help us?

a)

True

b)

False

8.

Which of the following is true for both bacteria and viruses?

a)

both contain genetic material

b)

can be killed using antibiotics

c)

have a cell membrane

d)

have a protein coat

9.
 Bacteria that help break down dead material in the environment are called 
a)
vaccines
b)
decomposers
c)
oats
10.
True or False: Some types of bacteria eat and clean up oil spills
a)
True
b)
False
11.
All bacteria are harmful to humans
a)
True
b)
False
12.
Bacteria help you digest food.
a)
True
b)
False
13.
When conditions get inhospitable, bacteria form an____________.
a)
dna
b)
nucleus
c)
endospore
d)
antibiotic
14.
What is prokaryotic?
a)
 An organism that lacks a nucleus
b)
An organism that is harmful to bacteria
c)
An organism that has a nucleus
d)
the organ that helps bacteria move
15.
When a virus invades a living cell, its _______
takes over the cell's functions.
a)
outer coat
b)
genetic material
c)
core
d)
cytoplasm
16.
How could you describe the size of a virus?
a)
Smaller than bacteria
b)
Larger than a parasite
c)
About the size of a dime
d)
Smaller than a proton