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Germ Theory, Viruses, and Bacteria

Total questions: 20

Worksheet time: 12mins

Name
Class
Date
1.

Match the following

a)

Viruses

1.

Non-living pathogen

b)

Bacteria

2.

Living pathogen

c)

Pathogen

3.

Disease causing agent

d)

Prokaryote

4.

no nucleus or membrane bound organelles

e)

Antibiotics

5.

Used to treat Bacterial infections

2.

Theory that states that microscopic organisms named germs can cause disease in the human body.

a)

The big bang Theory

b)

Spontaneous Generation Theory

c)

Germ theory of disease

d)

The Pasteur Theory

3.

Name some common types of pathogens

a)

Virus, Bacteria, Protist

b)

Virus, Sugar, Bacteria

c)

Bacteria, Amino Acids

d)

Hydrocarburs, Bacteria, Protist

4.

What tool provided the evidence to be able to formulate the germ theory?

a)

Telescope

b)

Microscope

c)

Drill

d)

Hammer

5.

What´s the name of the german physician that was able to isolated several bacteria from sick people?

a)

Francisco Redi

b)

Antoine Vaan Levonhooke

c)

Louis Pasteur

d)

Robert Koch

6.

True or False:

Viruses can be treated with antibiotics.

a)

False

b)

True

7.

TRUE or FALSE:

Viruses are smaller than the hosts they infect.

a)

True

b)

False

8.

Viruses are prokaryotes?

a)

True

b)

False

9.

What are the two viral reproductive cycles called?

a)

The lytic and lysogenic cycles.

b)

The viral reproductive cycle

c)

The carbon and nitrogen cycle.

d)

The prokaryotic and eukaryotic cell cycle.

e)

Mitosis and meiosis.

10.
Reasons that viruses are considered to be nonliving is because
a)
They are not cellular
b)
They cannot reproduce on their own
c)
They cannot make proteins
d)
all of the above
11.
Bacteria are unicellular
a)
True
b)
False
12.
Which of the following is found inside a prokaryote?
a)
cytoplasm
b)
DNA
c)
ribosomes
d)
all of these
13.

All bacteria are harmful.

a)

True

b)

False

14.

Bacteria are a living thing.

a)

True

b)

False

15.

Which of the following characteristics of life do bacteria have?

a)

Cell

b)

Grow and Develop

c)

Reproduce

d)

DNA

e)

All of the characteristics

16.
The bacteria seen in the picture is
a)
bacillus
b)
coccus
c)
spirilla
17.
Name this bacteria shape
a)
coccus
b)
bacillus
c)
spirillum
18.
Name this bacteria shape
a)
bacillus
b)
coccus
c)
spirillum
19.

A whip-like structure that helps a bacterial cell to move

a)

Flagellum

b)

Conjugation

c)

Endospore

d)

Pasteurization

20.

Bacteria cells do not have a nucleus. What is the name for this?

a)

prokaryote

b)

eukaryote

c)

karyote

d)

nonucleote