Infectious Diseases

1.

1 point

White blood cells that destroy pathogens by engulfing and then digesting them are called phagocytes

False

True

2.

1 point

The immune system fights disease by

producing a separate set of weapons for each kind of pathogen it encounters.

attacking each pathogen it encounters in the same manner.

acting as a physical barrier that prevents pathogens from entering the body.

causing blood vessels to shrink, which forces pathogens out of the body.

3.

1 point

Your air passages are lined with cilia, tiny hair-like structures that help trap and remove pathogens.

False

True

4.

1 point

When an infection has been brought under control, other immune system cells are "turned off" by chemicals produced by

suppressor T cells.

killer T cells.

helper T cells.

B cells.

5.

1 point

Which statement about pathogens is NOT true?

Pathogens belong in your body.

Pathogens can cause infectious diseases.

Some animals carry pathogens.

Once inside your body, pathogens may multiply.

6.

1 point

Which function is NOT carried out by your saliva and tears?

attacking pathogens

trapping pathogens

washing pathogens away

creating immunity against pathogens

7.

1 point

Which of the following diseases is caused by viruses?

influenza

tuberculosis

Lyme disease

strep throat

8.

1 point

Which of the following diseases is caused by bacteria?

influenza

the common cold

hepatitis

tuberculosis

9.

1 point

The white blood cells that carry out most of the immune system's functions are called lymphocytes

False

True

10.

1 point

The body's second line of defense against pathogens is

immunity.

inflammation.

the skin.

a vaccine.

11.

1 point

Microorganisms that cause disease are called toxins.

True

False

12.

1 point

The body's third and most sophisticated line of defense against pathogens is

inflammation.

the immune system.

a vaccination.

the skin.

13.

1 point

Many pathogens are kept out of the body by the

inflammation response

immune system

skin. skin

lymphatic system

14.

1 point

The openings into your body, such as your mouth, eyes, and nose, are covered by protective linings called mucous membranes

True

False

15.

1 point

Lyme disease, rabies, and malaria are mostly spread by

bites from animals, such as dogs and mosquitoes.

contaminated foods, like chicken and beef.

contaminated objects, like doorknobs.

indirect contact with an infected person.

16.

1 point

Infectious diseases are also known as communicable diseases.

True

False

17.

1 point

How can you avoid getting an infectious disease from food?

Eat chicken and beef that are rare, or slightly cooked.

Eat raw eggs on a regular basis.

Do not store foods in the refrigerator.

Keep hot foods hot.

18.

1 point

A(n) resistance is an unusually high occurrence of a disease in a certain place during a certain time period.

False

True

19.

1 point

The fluids, phagocytes, and dead cells that accumulate near an injury site often result in the formation of a thick, white liquid called lymph

False

True

20.

1 point

When an epidemic affects many areas of the world, as the 1918 flu outbreak did, it is sometimes called a pandemic.

True

False

21.

1 point

What produces active immunity?
i. receiving antibodies from your mother
ii. receiving antibodies from an injection
iii. having a disease
iv. receiving a vaccine

i,ii, and iii

i,ii, iii, and iv

iii and iv

i and ii

22.

3 points

You are awesome!

True

false

23.

1 point

Your body's general response to all kinds of injury, from cuts and scrapes to internal damage, is called immunity.

False

True

24.

1 point

Your body's first line of defense against infectious disease includes

phagocytes, lymphocytes, and pus.

T cells, B cells, and antibodies.

the lymphatic system, immune system, and inflammation response.

mucous membranes, saliva, and tears.

25.

1 point

Infectious diseases are caused by

Cilia

Pathogens

Antibiotics

T Cells

26.

1 point

Which of the following does NOT cause infectious diseases?

sharing a needle used to inject drugs

acids in the stomach

drinking water containing pathogens

indirect contact with an infected person

27.

1 point

Which of the following is NOT a cause of emerging diseases?

globalization

increased immunization

contact with infected animals

drug resistance

28.

1 point

Organisms that are so small they can only be seen through a microscope are called antibodies.

False

True

29.

1 point

Within seconds after your body is injured, the damaged cells

destroy one another until no damaged cells remain.

begin producing powerful acids that dissolve and destroy pathogens.

release chemicals that cause blood vessels in the injured area to enlarge.

shrink until they become so small that pathogens can no longer enter.

30.

1 point

The main foods in which Salmonella bacteria live are

bread, pasta, and cereal.

carrots, potatoes, and tomatoes.

nuts, beans, and berries.

poultry, eggs, and meat.