Immune System

Bacteria and viruses that cause disease are called

• microbes
• pathogens
• decomposers
• producers

Are larger in size

• Viruses

• Bacteria

• Both viruses and bacteria

Are considered to be living organisms

• Viruses

• Bacteria

• Both viruses and bacteria

Are considered to be non-living organisms

• Viruses

• Bacteria

• Both viruses and bacteria

Reproduce by hi-jacking host cell machinery

• Viruses

• Bacteria

• Both viruses and bacteria

A disease causing microorganism such as fungi, protozoans, parasites, bacteria, and viruses.

• Pathogen

• Infectious Disease

• Virus

• Bacteria

Tags

NGSS.HS-LS4-5

What is the role of antibodies?

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

A weakened or dead virus can act as a-

• vaccine
• leukocyte
• allergen
• macrophage

In order to infect a cell, a virus must:

• Pass through the plasma membrane

• Bind to receptors on the outside of the cell

• Be recognized by T-cells

• Be consumed by a body cell

What is true about the Immune System?

• Pathogens help the immune system
• It helps old diseases get stronger
• kills the body's functions
• It stores information from old "battles."