2.60: Describe How the Immune System Responds to Disease Using White Blood Cells, Illustrated by Phagocytes Ingesting Pathogens and Lymphocytes Releasing Antibodies Specific to the Pathogen

PHAGOCYTES: Engulfs and Releases Digestive Enzymes onto Pathogens to Remove them from the Body

ADAPTATIONS OF PHAGOCYTES
SENSITIVE CELL SURFACE MEMBRANE	Has a Sensitive Cell Surface Membrane that can Detects Chemicals Produced by Pathogen, Allowing them to Locate Pathogens Easily
DIGESTIVE ENZYMES IN CYTOPLASM	Once Pathogen is Engulfed, they can Release Digestive Enzymes onto Pathogen to Digest and Remove them from the Body
IRREGULAR SHAPED NUCLEUS	Irregular Shaped Nucleus Allowing them to Squeeze through Gaps in Capillary Walls to Move Towards Pathogens

LYMPHOCYTES: Produce Antibodies that will Deactivate Antigens of Pathogens and Produces Memory Cells that Stays in the Immune System

ADAPTATIONS OF LYMPHOCYTES
LARGE NUCLEUS	Has a Large Nucleus that Contains Multiple Copies of DNA so can Produce Antibodies in Large Amounts to Prevent the Spread of Diseases and Infections

IMMUNE SYSTEM RESPONSE TO DISEASE

LYMPHOCYTES	PHAGOCYTES
Diagram Showing the Response of Lymphocytes	Diagram Showing the Response of Phagocytes
Phagocytes have Sensitive Cell Surface Membrane that Can Detect Chemicals Produced by Pathogen Once they Encounter Pathogen, They will Engulf it and Release Digestive Enzymes to Digest the Pathogen Pathogen is Removed from the Body	When Pathogen is Detected, Lymphocyte will Split into Two Cells One Cell will Produce Antibodies that will Deactivate Antigens of Pathogens Other Cell will be a Memory Cell that Stays in the Immune Response so if Same Pathogen is Detected, Same Antibodies can be Produced Quicker, Easier and in Larger Amounts