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Pathogens and defences

Total questions: 16

Worksheet time: 9mins

Name
Class
Date
1.

Which pathogen is non-living?

a)

Virus

b)

Bacteria

c)

Fungi

d)

Parasite/Protist

e)

They are all alive

2.

Which pathogen needs a host cell to reproduce?

a)

virus

b)

bacteria

c)

fungus

d)

parasite/protist

3.

Which pathogen has spores that are carried through the air?

a)

protist/parasite

b)

fungi

c)

bacteria

d)

virus

4.

Which pathogen is treated with antibiotics?

a)

virus

b)

bacteria

c)

parasite

d)

fungi

5.

Which pathogen is a single-celled, prokaryotic organism.

a)

bacteria

b)

virus

c)

fungi

d)

parasite

6.
Which vector could lead to a malaria epidemic?
a)
fly
b)
bat
c)
mosquito
7.

First-line defence mechanisms in humans include

a)

development of fever.

b)

the action of phagocytes.

c)

the use of antibiotics.

d)

the presence of cilia on some cells.

8.

Malaria is a common disease in many countries. What type of pathogen is malaria?

a)

a virus

b)

a bacterium

c)

a fungus

d)

a protist

9.

Which type of pathogen is responsible for causing the flu, chicken pox, and yellow fever?

a)

viruses

b)

parasites

c)

fungi

d)

bacteria

10.
Which pathogen reproduces using binary fission (Asexual Reproduction)?
a)
Virus
b)
Bacteria
c)
Fungi
d)
Parasite
11.

What are two examples of chemical barriers?

a)

Lysozyme enzyme in our tears

b)

Skin

c)

White Blood Cells

d)

Stomach Acid

12.

Which of the following is a type of white blood cell that will help to destroy pathogens which get past our physical barriers and chemical defences?

a)

bacterium

b)

antibody

c)

antigen

d)

lymphocyte

13.

Foreign cells in the body carry foreign proteins that the body recognises as 'non-self'. These are called:

a)

Antibodies

b)

Antigens

c)

Red Blood Cells

d)

White Blood Cells

14.

Which cells produce antibodies to pathogens?

a)

Red blood cells

b)

Bacteria

c)

lymphocytes

d)

phagocytes

15.

The diagram shows a pathogen, what is the arrow pointing to on the surface of the pathogen?

a)

a molecule called an antigen

b)

a molecule called an antibody

16.

The diagram shows one way the body defends itself against pathogens.

What is the name of this defence mechanism?

a)

antibody production

b)

egestion

c)

phagocytosis

d)

vaccination