Immune System Review

What do scientists call bacteria and viruses that can make people sick?  

• diseases
• vaccines
• antibodies
• pathogens

The picture below illustrates one internal part of the body’s immune system. What process is illustrated in the picture?  

• a skin cell destroying germs.
• inflammation near an opened wound
• a white blood cell destroying pathogens
• mucus in the lungs destroying pathogens

 Like all other body systems, the immune system helps the body maintain homeostasis.  Which statement best describes how the immune system does this?  

• it protects other organs and tissues from infection and disease
• it breaks down food to provide cells with nutrients
• it gathers information through the senses and controls all other body systems
•  it transports oxygen and carbon dioxide

Diseases are passed from human to human by these four types of germs: 

• Viruses, influenza, HIV, and vaccines
• Viruses, bacteria, fungi, and parasites
• Viruses, cancers, mutagens, and DNA
• Viruses, blood, pollutants, and symptoms

Where do T cells mature?

• lymph node
• bone marrow
• thymus
• liver

What are Lymphocytes?

• A type of red blood cell
• A nucleus 
• A type of white blood cell
• Bone Marrow

Pathogens are recognized by their...

• antigens
• antibodies
• killer t-cells
• B-cells

How do germs enter the body?

• From touching a mucous membrane
• From not washing your hands
• a.  From touching your face
• All of the above

Any substance that causes an allergy is a(n):

• Allergen
• Irritant
• Virus
• Carcinogen

All foreign materials that cause a response from the immune system are called _____________________.

• Antigens
• Active Immunity
• Antibodies
• Antibiotics