Germs & Diseases
What is a noninfectious disease?
A disease that cannot be spread from person to person
What are two symptoms of inflammation?
Redness & swelling
What is the body system that includes the spleen and tonsils?
Lymphatic system
One way your body learns how to fight diseases is through memory cells.
True
What are single-celled microorganisms?
Bacteria
What is the difference between a pandemic and an epidemic?
Epidemic = spreads in one area
Pandemic = spreads across continents
What cells fight infections in the body?
White blood cells
What scientist studies disease spread?
Epidemiologist
White blood cells help fight disease
True
What is the transfer of blood from one person to another?
Transfusion
What type of pathogen is nonliving and must reproduce inside a host
A virus
Name two body barriers that keep pathogens out
Skin, mucus, tears, earwax, cilia (any two)
What is the role of antibiotics?
To kill or stop the growth of bacteria
Antibiotics kill viruses
What protein destroys pathogens?
Antibodies
What is a vector?
An organism that carries and spreads disease
What is cilia?
Tiny hairlike structures that filter pathogens
What is a vaccine?
A substance with weakened/dead pathogens
An epidemic spreads across continents.
False. That's a pandemic.
What is contamination?
When germs get into food or water?
Define Germ Theory
All contagious diseases are spread by microorganisms
What type of immunity uses memory cells for protection?
Active immunity (or immunity involving memory cells)
What does the lymphatic system mainly do?
Helps fight infection and maintain fluid balance
Passive immunity lasts forever
False. It is temporary.
What is an autoimmune disease?
A disease causes the body to attack itself