Immune System

What is the body's first line (non-specific) of defense against infection by foreign organisms?

• antibodies

• lymph nodes

• white blood cells

• the skin

What is the term for a strong response to a harmless antigen in the environment?

• An allergy

• Cell-mediated immunity

• An autoimmune disease

• Inflammatory response

These cells are responsible for making antibodies.

• Helper T Cells
• Killer T Cells
• B Cells
• Macrophages

Killer T Cells-

• Kill the pathogen
• Kill your infected body cells
• Kill only viruses
• Kill only bacteria

The part of foreign materials that cause a response from the immune system are called _____________________.

• Antigens
• Active Immunity
• Antibodies
• Antibiotics

Antigens are part of...

• Your own immune system.
• The pathogen.

Antibodies are made by...

• Your own cells.
• The pathogen.

What is the role of a Killer T cell?

• Kills specific pathogens
• Helps activate other immune cells
• Produces antibodies
• Binds to antigens

What is the role of a helper T cell?

• Kills pathogens
• Helps activate killer T and B cells
• Produces antibodies
• Binds to antigens

Tags

NGSS.HS-LS1-4

What is the role of a B cell?

• Kills pathogens
• Helps activate other immune cells
• Produces antibodies
• Binds to antigens