Control and Immunity (Leaving Cert Biology): Flashcards
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Practise the cards
14 cards from this deck
Two main defence systems controlling viruses
Two main defence systems controlling viruses
General Defence System & Specific Defence System
Type of defence: General Defence System
Type of defence: General Defence System
First line of defence, non-specific, acts quickly
Physical barriers in General Defence System
Physical barriers in General Defence System
Skin, hairs & mucus in nose, stomach acid
Role of stomach acid in General Defence System
Role of stomach acid in General Defence System
Destroys many viruses swallowed with food/mucus
What Specific Defence System targets
What Specific Defence System targets
Particular viruses - provides tailored response
What white blood cells produce vs viruses
What white blood cells produce vs viruses
Antibodies
What are antibodies?
What are antibodies?
Proteins that attach to viruses
What antibodies do to viruses
What antibodies do to viruses
Neutralise directly or mark for destruction
Function of memory cells in immune system
Function of memory cells in immune system
Provide much faster immune response if same virus infects again
How vaccines protect without causing illness
How vaccines protect without causing illness
Stimulate immune system to produce antibodies & memory cells
What MMR vaccine protects against
What MMR vaccine protects against
Measles, mumps, and rubella
Definition: Vaccination
Definition: Vaccination
Non disease causing dose of the pathogen
Definition: Pathogen
Definition: Pathogen
Organism that causes disease
Why antibiotics have no effect on viruses
Why antibiotics have no effect on viruses
Antibiotics act on cells; viruses are not cells