Antibacterial resistance

• What is antibacterial resistance?

  Bacteria change to resist antibiotics
• How do mutations relate to antibacterial resistance?

  Mutations are random DNA changes
• What causes bacterial strains to develop antibiotic resistance?

  Natural selection due to DNA mutations
• What is the significance of a large population of bacteria in resistance development?

  Some cells may not be affected by antibiotics
• What is Staphylococcus Aureus known for?

  It is resistant to most antibiotics
• What is binary fission?

  A form of asexual reproduction in bacteria
• What happens during binary fission?

  An organism divides into two identical cells
• What are aseptic procedures in bacterial investigations?

  • Techniques to prevent contamination
  • Ensure accurate results in experiments
  • Maintain sterile conditions
• Which antibacterial plate was most effective in the investigation?

  The west rapid plate was most effective
• What does a clear area around an antibiotic indicate?

  It shows effective antibacterial action
• What was the least effective antibacterial solution in the investigation?

  Distilled water was the least effective
• What is the zone of inhibition?

  A circular area where bacteria can't grow
• What does a yellow area around an antibiotic indicate?

  Bacteria are growing in that area
• What is the relationship between mutations and antibiotic resistance?

  • Mutations are random changes in DNA
  • Some mutations confer resistance
  • Natural selection favors resistant strains