A21 10 Vaccination

Define Vaccine

• A medicine that contains an inactive form of a pathogen, used to condition the body’s immune system.
• Protection from the effects of a pathogenic infection by the body’s defence mechanisms.
• A type of white blood cell that “remembers” a pathogen and produces appropriate antibodies.
• A type of white blood cell that can engulf and destroy pathogens when they invade

Define Immunity

• A medicine that contains an inactive form of a pathogen, used to condition the body’s immune system.
• Protection from the effects of a pathogenic infection by the body’s defence mechanisms.
• A type of white blood cell that “remembers” a pathogen and produces appropriate antibodies.
• A type of white blood cell that can engulf and destroy pathogens when they invade

Define Memory cell

• A medicine that contains an inactive form of a pathogen, used to condition the body’s immune system.
• Protection from the effects of a pathogenic infection by the body’s defence mechanisms.
• A type of white blood cell that “remembers” a pathogen and produces appropriate antibodies.
• A type of white blood cell that can engulf and destroy pathogens when they invade

Define Phagocyte

• A medicine that contains an inactive form of a pathogen, used to condition the body’s immune system.
• Protection from the effects of a pathogenic infection by the body’s defence mechanisms.
• A type of white blood cell that “remembers” a pathogen and produces appropriate antibodies.
• A type of white blood cell that can engulf and destroy pathogens when they invade

Define Lymphocyte

• A type of white blood cell that can produce antibodies or antitoxins against pathogens that invade
• A chemical produced by white blood cells that fits on a specific antigen and which is able to label or destroy the pathogen it fits on
• A chemical on the surface of cells that can be used to recognise specific types of cells
• A type of white blood cell that can engulf and destroy pathogens when they invade

Define Antibody

• A type of white blood cell that can produce antibodies or antitoxins against pathogens that invade
• A chemical produced by white blood cells that fits on a specific antigen and which is able to label or destroy the pathogen it fits on
• A chemical on the surface of cells that can be used to recognise specific types of cells
• A type of white blood cell that can engulf and destroy pathogens when they invade

Define Antigen

• A type of white blood cell that can produce antibodies or antitoxins against pathogens that invade
• A chemical produced by white blood cells that fits on a specific antigen and which is able to label or destroy the pathogen it fits on
• A chemical on the surface of cells that can be used to recognise specific types of cells
• A type of white blood cell that can engulf and destroy pathogens when they invade