Lab quiz #1 Learning objectives- Review lab notes for full understanding of learning objectives. Exercise 1 Scientific Method 1. Define scientific method, experimental group, control group, independent variable, dependent variable, controlled variables, theory 2. Describe the basic steps of the scientific method Exercise 2 Measurements 3. Define meniscus, density 4. Recognize graduated cylinders, beakers, Erlenmeyer flasks, pipet (bulb, glass, micropipette) 5. Know how to measure samples using graduated cylinders, and various types of pipettes (micropipettes). 6. Know measure using a digital scale 7. Know the advantages of the metric system of measurement 8. Know how to measure using the metric units (meter, liter, grams) 9. Know the prefixes and be able to use them to convert (kilo, centi, milli, micro) 10. Be able to measure temperature in Celsius and convert to Fahrenheit or vice versa 11. Know the conversion 12. 1cubic centimeter (cc) of water= 1ml of water= 1 gram of water and that you can use this to estimate measurements in living organism since they are made up of mostly water. 13. Know how to work out the problems (#1 and #2) on page 14 and 15 Exercise 3 Microscopy 14. Be able to identify parts of the microscope (Fig 3-1 p. 26) 15. Be able to describe how to prepare a wet mount slide 16. Be able to calculate total magnification of a compound microscope that has been set up. 17. What is the objective power of the scanning objective? Low objective? High objective? Oil immersion? 18. Be able to describe the procedures taken to set up a compound microscope. 19. When is the only time you would use the course adjustment? 20. What specimens would you be able to observe using a dissecting microscope? Exercise 6 Structure and function of living cells 21. Define the cell, and cell theory, prokaryotic and eukaryotic cells, nucleus, organelle, 22. List the structural features shared by all cells 23. Describe the similarities and differences between prokaryotic and eukaryotic cells 24. Identify and describe the function of the cell parts of plants and animals using models or pictures 1 Exercise 5 Macromolecules and you 25. Define macromolecule , monosaccharide, polysaccharide, lipid, protein, peptide bond, amino acid 26. Describe the basic structure of carbohydrates, lipids, and proteins 27. Recognize positive and negative test for Carbohydrates, lipids, proteins. (Benedicts, Buirets, Sudan IV and paper)-Know the procedures for running each of these test. 28. What are the starting colors of these indicators? What are the resulting colors in a positive test? Exercise 7 Diffusion, Osmosis and tonicity 29. Define solvent, solute, solution, selective permeability, diffusion, osmosis, concentration gradient, plasmolyzed, tonicity, hypertonic, isotonic, and hypotonic 30. Describe the structure of the cellular membranes 31. Describe the effects of temperature on diffusion 32. Describe/draw out the effects of hypertonic, isotonic and hypotonic solutions 33. of animal (RBC) blood cells and plant (Elodea) cells – basically tell me which way water will move (in or out of the cell) in various tonic solutions 34. Know these words,Lysis, hemolysis, crenate, swell, burst 35. What is dialysis tubing and what is it used for? 36. How can we determine the concentration of a potato cell? 37. Be able to identify the tonicity of a solution based on the plant cell structures (Fig 7-3 and 7-4) 38. Be able to identify the tonicity of a solution based on the animal cell structure (Fig 7-5) 2