Innate and Acquired Immunity (Leaving Cert Biology): Flashcards

Body's ability to resist infection & fight diseases

Harmful microorganisms that cause diseases

Born with, non-specific, attacks all pathogens automatically

Develops over time, specific to pathogens, long-term memory

Enzyme in sweat/tears/saliva that dissolves bacteria cell walls

Hair-like structures that move mucus & trapped pathogens up

White blood cells engulf & destroy invading pathogens

Type of white blood cell that engulfs & destroys pathogens

Foreign molecules on pathogens recognised as threats

Proteins produced by lymphocytes that bind to specific antigens

Rapidly produce antibodies if same pathogen re-enters body

Body produces own antibodies, provides long-term protection

Receive antibodies from another organism, short-term only

Killed/weakened pathogen stimulates antibody production safely

Antibodies from mother via placenta & breast milk