21-2 Defenses Against Disease

Injecting a small amount of inert ('dead') viruses or bacteria to help your white blood cells recognize them is...

• Antibiotics

• Lymphocytosis

• Endocytosis

• Immunization

They need a host in order to replicate/reproduce.

• Viruses

• Bacteria

Our white blood cells can fight invaders by... (choose three)

• producing antibodies

• trapping them in one place

• consuming them

• producing anti-toxins

• physically removing them from the body

The _______ has passive defense in the form of acids and enzymes.

• Reproductive Tracts

• Respiratory System

• Digestive System

• Skin

Which of the following is the body’s first line of defense against disease?

• vaccines
• white blood cells
• antibodies
• skin

Vaccinations are used for

• Curing the illness
• Preventing the Illness
• Getting the illness

How do T cells differ from B cells?

• T cells fight pathogens by killing pathogens directly, while B cells fight pathogens by making antibodies.

• T cells only make memory cells, and B cells only make antigens

• T cells fight pathogens by making antibodies, while B cells fight pathogens by killing pathogens directly.

• T cells can only fight off pathogens the body has encountered once, and B cells can fight off any pathogen the body comes across.

These cells activate killer T cells and other helper T cells as well as activate B cells

• Helper T Cells
• Cytotoxic T Cells
• Macrophages
• Suppressor Cells

A white blood cell that makes antibodies

• T cell
• bacteria
• B cell
• mast cell

These cells are responsible for making antibodies.

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