5.9 - Antibiotics Flashcards
How antibiotics work against bacteria Why antibiotics are ineffective against viruses The consequences of antibiotic resistance
What are antibiotics?
Drugs that kill or inhibit bacterial growth
How do antibiotics work?
Specifically what do they target?
Target bacterial enzymes and ribosomes
Why don’t antibiotics damage human cells?
Human cells have different enzymes and ribosomes
What are some ways antibiotics affect bacteria?
Prevent cell wall synthesis
Why don’t antibiotics work against viruses?
Viruses lack cell structures and rely on host cells
How does antibiotic resistance develop?
Genetic mutations and natural selection
What happens to bacteria with antibiotic resistance?
They survive and reproduce
How is antibiotic resistance spread?
Through reproduction and conjugation
Where are genes for antibiotic resistance often found?
On plasmids