Immunity (LC 2027) (Leaving Cert Biology): Flashcards
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Practise the cards
15 cards from this deck
Infectious diseases are caused by
Infectious diseases are caused by
Pathogens (harmful microorganisms)
Obligate parasite
Obligate parasite
Can only take in food from a live host
Facultative parasite
Facultative parasite
Can take in food from live or dead host
Antibiotics are effective against
Antibiotics are effective against
Bacterial infections only (not viruses)
Example of antiviral drug
Example of antiviral drug
Acyclovir (treats cold sore virus)
Bacteriophages
Bacteriophages
Viruses that infect & destroy bacteria
Why viruses are obligate parasites
Why viruses are obligate parasites
Can only multiply using host cell energy & structures
5 stages of viral replication
5 stages of viral replication
Attachment, entry, synthesis, assembly, release
DNA virus replication location
DNA virus replication location
Host cell nucleus
RNA virus replication location
RNA virus replication location
Host cell cytoplasm
Active immunity
Active immunity
Antibodies produced by person's own body
Passive immunity
Passive immunity
Antibodies from external source (not made by own body)
Zoonosis
Zoonosis
Disease jumping from animal to human
meaning
meaning
Avg. people infected by one diseased person
means
means
Disease increases & may cause epidemic