2.5 – Cell wars (defenders) Chapter 2 2.5 – Cell wars (defenders)

White Blood Cells (WBC) Your _______ system defends you by destroying invaders One defence is to attack the invaders directly with _______ blood cells Once the invaders are _________ by the cells, the wbc’s lysosomes release special chemicals that destroy the invader This also __________ the wbc

White Blood Cells (WBC Pus is made of the strands of _________ and cell _________ that remain after invaders have been attacked by wbc As well as attacking _________ wbc also kill body cells that have been damaged by bacteria, viruses, or poisonous chemicals

White Blood Cells (WBC)

Antibodies Your immune system can also use ___________ Antibodies are made by a special type of wbc Antibodies are large molecules that lock onto invading organisms

Antibodies Invading cells all have distinctive molecules called _________ on their cell membranes or protein coats These markers have a __________ shape The antibodies are designed to fit that shape and lock onto them Each type of antibody works on only one type of invader

Antibodies