The Immune System

?
  • Created by: dunmore1
  • Created on: 16-03-18 18:17

The Immune System

1.       Consuming them White blood cells can engulf foreign cells and digest them. This is called phagocytosis.

2.       Producing antitoxins: These counteract toxins produced by the invading bacteria.

3.       Producing Antibodies: Every invading pathogen has unique molecules (called antigens) on its surface. When your white blood cells come across a foreign antigen they produce proteins called antibodies to lock onto the invading cells so that they can be found and destroyed by other white blood cells. The antibodies produced are specific to that type of antigen. Antibodies are then produced rapidly and carried around the body to find all similar bacteria or viruses. If the person is infected with the same pathogen again the white blood cells will rapidly produce the antibodies to kill it — the person is naturally immune to that pathogen and won't get ill.

1 of 1

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Infection and Response resources »