Immune System

What is the function of antibodies within the immune system?

• Antibodies kill off any antigen that enters the body.

• Antibodies are only made when you are given a vaccination for specific antigens.

• Antibodies bind to specific antigens to flag for destruction.

• Antibodies are part of an external defense mechanism.

What happens after the second time you are exposed to a pathogen?

• The body will not be able to fight off the pathogen quickly, because it knows how to get into the body easier.

• The body's immune system will react the same was as it did during the first exposure.

• The body can only be exposed to a pathogen a second time if you do not have a vaccine.

• The body will know how to fight off the pathogen quickly, because memory cells have been created after the first encounter.

Tags

NGSS.MS-LS4-4

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.

Cells that ingest pathogens are

• plasma cells.

• phagocytic cells.

• helper T cells.

• antibodies.

Mast cells produce __________________ which causes the inflammatory response. 

• interleukin
• histamine
• antibodies
• interstitial fluid

A nonspecific defensive response of the body to tissue injury characterized by dilation of blood vessels and swelling.

• immunity
• interferon
• immunization
• inflammation

T cells that kill infected cells are

• cytotoxic T's.

• helper T's.

• plasma cells.

• antigen presenting cell.

The blue molecule in this image is a(n) _______.

• Antibody

• Antigen

• Pathogen

• Blood cell

These cells bind to antigen presenting cells signaling them to produce cytokines that stimulate B and T cells to divide.

• helper T cell

• mast cell

• cytotoxic T cell

• plasma cells

Adaptive immunity depends on

• traits common to groups of pathogens.

• pathogen-specific recognition.

• maternal provision of antibodies to offspring.

• plants being exposed to new pathogens.