Bacterial Transfer of Genetic Material Mrs. Stewart Medical Interventions

Bell Work List one way that humans contribute to antibiotic resistance. Misuse of antibiotics – Not finishing your antibiotic dose – Not taking antibiotics correctly / consistently Overuse of antibiotics – Taking them for viral infections – Putting them in food and products

Essential Question What methods do bacteria use to SHARE antibiotic resistant genes? Bacterial cells use multiple pathways to gain resistance to antibiotics Essential Understanding

Performance Objective Students will be able to create a 3D model that illustrates one mechanism used by bacteria to gain antibiotic resistance

Think – Pair – Share Why does the CDC consider antibiotic resistant bacteria a high priority? (Hint: Think about the activity from yesterday)

Natural Selection How does the Theory of Natural Selection apply to the problem of antibiotic resistant bacteria? Survival of the Fittest – Those that survive in the presence of an antibiotic get to reproduce – Eventually the entire population is resistant

Bacterial Genetic Transfer DNA code is where biodiversity occurs Changes in DNA code gives variety That variance could be harmful or beneficial in different environments – Natural Selection = Survival of the Fittest Bacteria can share their DNA with other bacteria What makes bacteria unique?

3D model projects Get into your lab groups Read your project info sheets

Reflection – Exit Ticket How does a bacterium’s ability to share genes intensify the problem of antibiotic resistance? Write your answer on a sheet of paper and hand it to Mrs. Stewart on the way out the door.