North Carolina Science Grade 8

Chapter 20: Immunity and Disease

Immunity and Disease

1.
Molecules that are foreign to your body are called __________.
A)antigens
B)memory cells
C)antibodies
D)lymphocytes
2.
Which one of the following is a chemical that can cause a chronic lung disease when inhaled?
A)lead-based paint
B)alcohol
C)asbestos
D)antihistamine
3.
What is the job of the Centers for Disease Control and Prevention (CDC) in the United States?
A)monitors the spread of infectious disease
B)pasteurizes all milk sold in stores
C)regulates hospitals
D)produces antibiotics that are used to treat diseases
4.
How can a person become infected with HIV?
A)sitting on a toilet seat
B)having sex with an infected person
C)touching an infected person
D)being near an infected person
5.
Surgery, irradiation with X rays, and chemotherapy have been used to treat __________.
A)malaria
B)cancer
C)allergies
D)diabetes
6.
Which one of the following is a characteristic of cancer cells?
A)they can not survive in the blood
B)they function normally in the body
C)their growth is uncontrolled
D)they can only cause tumors in the liver
7.
What body system is attacked when a person is infected with HIV?
A)immune system
B)reproductive system
C)respiratory system
D)digestive system
8.
Which one of the following is a characteristic of passive immunity?
A)is produced by vaccines
B)results from antibodies made by your body
C)caused by a pathogen
D)does not last long
9.
Diabetes is a chronic disease associated with levels of __________ produced by the pancreas.
A)antibodies
B)insulin
C)blood
D)allergens
10.
Which one of the following is a viral STD?
A)gonorrhea
B)syphilis
C)chlamydia
D)genital herpes
11.
The process of heating a liquid to kill much of the bacteria in milk and other liquids is called __________.
A)pasteurization
B)inflammation
C)vaccination
D)immunization
12.
An example of a biological vector is __________.
A)water fountain
B)a mosquito
C)virus
D)bacterium
13.
Joseph Lister recognized the relationship between the infection rate following surgery and __________.
A)diseases
B)immunization
C)viruses
D)cleanliness
14.
Your __________ acts as a barrier that prevents many pathogens from entering your body.
A)unbroken skin
B)cilia
C)white blood cells
D)stomach
15.
With __________ some antibodies stay on duty in your blood, and more are produced rapidly if the pathogen enters your body again.
A)active immunity
B)first-line defenses
C)inflammation
D)passive immunity
16.
Which one of the following could be described as a minute piece of genetic material that multiplies in host cells?
A)virus
B)protist
C)fungus
D)bacterium
17.
Forms of antigens that give you active immunity to a disease without getting the disease first are called __________.
A)vaccines
B)antibodies
C)viruses
D)fevers
18.
__________ is the leading cause of cancer deaths for males in the United States.
A)Breast cancer
B)Liver cancer
C)Lung cancer
D)Prostate cancer
19.
Which one of the following can increase your risk of getting cancer?
A)all answers are correct
B)exposure to carcinogens
C)exposure to ultraviolet rays of the Sun
D)exposure to X rays
20.
Which of the following is a defense against pathogens that are used by your digestive system?
A)perspiration
B)oil glands
C)hydrochloric acid
D)white blood cells
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