Immunity and Disease
Test Review
7th grade Science
1. Organism that
carries a disease
2. Use of chemicals
to destroy cancer
cells
3. Occurs when your
body makes its own
antibodies
4. Overly strong
reaction of the
immune system to a
foreign substance.
Active Immunity
Biological vector
Allergy
Chemotherapy
5. Complex group of
defenses the body has to
fight disease.
6. Killing most bacteria
by heating food at high
temperatures.
7. Occurs when
antibodies are
introduced into the
body.
Immune System
Passive Immunity
Pasteurization
The first person credited with
proving that bacteria could cause
disease was ________.
Pasteur
_________ is a bacterial disease that
can cause sterility if untreated.
A.
B.
C.
D.
Chlamydia
Gonorrhea
Herpes
Both a and b
_________ diseases are spread by
water, air, food, contact, and by
organisms.
Infectious
_________ developed a way to detect
which pathogen caused a particular
disease
Koch
The U.S. Center for Disease Control
and Prevention (CDC)
monitors_______.
The spread of disease
Epidemics
Diseases brought into the United States
________, and English surgeon,
recognized the relationship between
the death rate and the degree of
cleanliness in surgery in the 1800s.l
Lister
Allergies _____________.
Dust is an allergen for some
Reactions include watery eyes
Most reactions are not serious
________ is a virus that hides in
the body for long periods of time
Herpes
What is true about immunities?
Newborns have passive immunity
Immunities build as you grow older
Vaccines create active immunities
A _________ is a substance made
by an organism in response to
invading substances and diseasecausing organisms.

Antibody
What is true about HIV?
Victims of it often die of pneumonia
It can be transmitted by contact with bodily fluids
It breaks down the immune system
What is true about cancer?
It results from uncontrolled cell growth
Cancer cells do not function normally
Its cells travel in the body
Molecules that are foreign to your
body are called _________.
Antigens
Name
AIDS
Herpes
Syphilis
Cause
Symptoms
Prognosis/
cure
Virus
Contract
other
diseases
Death, no
cure
Virus
Blisters
Recurrence,
no cure
Bacteria
Sores, rash,
fever,
swollen
lymph
glands.
Damage to
body organs
and death
unless
treated early
Strep Throat
Measles
Influenza
Diphtheria
Mumps
Chicken Pox
Tetanus
Hepatitis
Bacteria
Viruses
What is the relationship between
pasteurization and disease?

The pasteurizing process heats food to
temperatures that kill most harmful bacteria. By
killing harmful bacteria, the chance of disease is
decreased.
Explain how HIV affects the
immune system.
HIV attacks cells in the immune system called
lymphocytes. Theses are the cells that normally
fight antigens that cause disease. The body is
left with no way to fight invading antigens, and
the whole immune system breaks down. AIDS
patients develop other diseases such as
pneumonia, cancer, or tuberculosis and usually
die from theses diseases.
Syphilis







Cause: Bacteria
Means of transmission: Sexual Contact
Stage 1 Symptoms: Mouth sores
Stage 2 symptoms: Rash, fever, lymph glands swell
Stage 3 symptoms: Infect cardiovascular and nervous
systems.
Treatment: Antibiotics in early stages most effective
Outcome if untreated: Damage to body organs, death


Immune system
Your ________
is made up of cells, tissues,
organs, and body system that fight foreign
Skin
organisms. ___________
is a barrier that
prevents many pathogens from entering the
body.
White
Your circulatory system contains ___________
blood cells that surround and digest foreign
organisms and chemicals as they enter the body.
Sometimes, when the blood cells cannot destroy
fever
the bacteria fast enough, a ______________
develops.


cilia
Your respiratory system has ___________
and
mucus in the nose and throat to trap pathogens.
cough
When you __________
you expel pathogens.
enzymes
In the digestive system, ___________in
your
liver
mouth, stomach, pancreas, and ____________
Hydrochloric Acid
destroy pathogens. ______________in
your
stomach kills bacteria that enter your body on
the food that you eat. If you do get sick, your
body has defenses in the form of
Specific Immunity
_____________.