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Biology 201

Biology 201. Introduction to the Microscope. Laboratory Safety and Etiquette. Cabrillo College Department of Biology. Laboratory Rules. No eating or drinking in labs Do not enter stockroom or back halls Clean up after yourself. Laboratory Etiquette.

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Biology 201

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  1. Biology 201 Introduction to the Microscope

  2. Laboratory Safety and Etiquette Cabrillo College Department of Biology

  3. Laboratory Rules • No eating or drinking in labs • Do not enter stockroom or back halls • Clean up after yourself

  4. Laboratory Etiquette • Clean your personal workspace after use • Wipe down benches with disinfectant before and after use. • Ensure that no trash is left behind • No trash in the sinks • Push in chairs • Place lab items back on carts and trays

  5. Learning Center & Open Labs • The LC and open labs are a bonus, not a right, your flexibility is appreciated • Hours are posted on LC and lab doors • Hours are subject to change without notice • Some study items may not be available a day or two before an exam • Don’t wait until the last day to study

  6. Laboratory Safety 1. Laboratory Hygiene 2. Sharps Safety 3. Safety Equipment 4. Fire Safety 5. Chemical Safety

  7. 1. Laboratory Hygiene • Scrub hands thoroughly when finished • Avoid cross contamination • Do not touch self, faucets, doorknobs, notebooks, pens etc. with gloves on. • Keep a pen or two in your drawer for lab use only • Clean and disinfect your workspace

  8. 2. Sharps Safety • Sharps include • Razor and scalpel blades • Needles and pins • Microscope cover slips • Broken glass • Place sharps in sharps boxes • Broken Glass into glass box (ask for help) • NO SHARPS OR GLASS IN THE TRASH

  9. 3. Safety Equipment • Do not hesitate to use safety equipment. It is for student use as well as instructor use. • Shower and eyewash (15 min. soak) • First aid kit • Fire extinguisher, Fire blanket, Alarm pulls

  10. 4. Fire Safety • Never leave flames unattended • Do not use flammables near ignition sources • Fire Extinguishers • Pull ring, aim at fire’s base, squeeze handle, sweep back and forth (evacuate if >1m3) • Fire Blanket • Fire alarm pulls

  11. 5. Chemical Safety • Wear gloves and glasses where appropriate • Follow instructor’s directions • Dispose of waste properly-Do Not pour down the drain

  12. History of the Microscope • Anton van Leeuwenhoek (1676) was first to see microorganisms

  13. History of the Microscope • Robert Hooke proposed “cell theory” and invented primitive compound microscopes

  14. Metric Units

  15. Properties of Light

  16. Properties of Light

  17. Properties of Light • Oil matches the refraction index of glass

  18. Types of Microscopes • Dissection – for solid objects, low power • Compound – for translucent objects, higher power • Electron – any object, very high power

  19. Types of Microscopes - Dissection

  20. Types of Microscopes - Compound

  21. Types of Microscopes - Electron

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