WorksheetsBody's Defense Against Disease
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
Bacteria that are harmful to people are called _____.
a)
Pathogen
b)
Lymph Nodes
c)
Macrophages
d)
T Cells
2.
Which is a characteristic of viruses?
a)
They are made up of viruses
b)
They are made up of a single cells
c)
They reproduce on their own
d)
They produce T cells
3.
Why did more people die from diseases in the 1800s?
a)
Vaccines were not strong enough.
b)
Pathogens were more resistant to medicine.
c)
No one knew that germs existed
d)
People did not care as much about health.
4.
Which of the following is the body’s first line of defense against disease?
a)
vaccines
b)
white blood cells
c)
antibodies
d)
skin
5.
A molecule called IgG is made in the lymphocytes of the immune system. IgG latches onto pathogens and helps destroy them. Based on this information, it can be determined that IgG is a type of _____.
a)
bacterium
b)
allergy
c)
antibody
d)
virus
6.
How do antigens protect the body from diseases?
a)
They make white blood cells.
b)
They produce mucus, which washes away germs.
c)
They help destroy T cells.
d)
They alert the immune system when pathogens enter the body.
7.
Rubella is a disease caused by a virus. What is the best protection against rubella?
a)
antibiotics
b)
penicillin
c)
a blood transfusion
d)
a vaccine
8.
When pollen enters some people’s bodies, their immune systems overreact, causing their eyes and the membranes in their noses to swell. This reaction of the immune system is best described as _____.
a)
an infection
b)
a germ
c)
an immunity
d)
an allergy
9.
Why is AIDS so dangerous?
a)
It is caused by resistant bacteria.
b)
It greatly weakens the immune system.
c)
It causes white blood cells to multiply.
d)
It can be cured only with expensive antibiotics.
10.
Which activity could NOT cause the spread of HIV?
a)
having sex
b)
having a blood transfusion
c)
holding hands
d)
sharing needles
100 %
