Topic : Microscope Aim : Describe the structure of the compound microscope. Do Now :

1. Topic: Microscope Aim: Describe the structure of the compound microscope. Do Now: • Take out Cell Transport Review #2 ISA • Take out your microscope notes. HW: Castle Learning – Cell Respiration and Transport  Due Friday

2. A normal picture of a bluebottle fly maggot. But a magnified view looks very different…

4. For every one human being on Earth, there are almost 2 million ants.

5. The clawed tip of an adult fig-eater beetle's leg

6. Pollen from a variety of plants (sunflower, morning glory, holleyhock, lily, primrose and caster bean).

7. A side view of a moth’s head.

8. A breast cancer cell that shows the overall shape of the cell's surface at a very high magnification.

11. Blood

12. Cheek Cells 40x

13. Onion Cells 10x

15. Eyepiece Ocular(usually 10x) Lens you look through

16. Body Tube Connects eyepiece to nosepiece

18. Objective lenses Contains lenses Low, medium, high power

20. Scanning objective High power objective Low power objective • Which objective provides the larger field of view? Low or high power? Support your answer. • Low power because it has a LARGER field of view. • 2. Which objective is used when searching for the specimen on a slide? • Low power because it has a LARGER field of view. • 3. Which objective makes the image appear larger? • High power

21. A B • Low Power • LARGER Field of view • Used when trying to locate specimen on the slide • High Power • Smaller Field of View • More magnification

22. In the space at the bottom of the sheet: • Low power objective: Gives a larger field of view • High power objective: Magnifies image to provide a larger image

24. Nosepiece Holds & rotates obj. lenses Nosepiece

27. Arm Supports microscope when carried

29. Base Support

30. One hand holds the arm. The other hand is under the base. How must you ALWAYS carry a microscope???

32. Stage Where slide is placed

33. Stage Clips Hold slide in place

35. Light Source Illuminates specimen, provides light

38. Diaphragm Controls the AMOUNT of light used

41. Low Power • Brighter • High Power • Darker Darker under high power

43. Coarse Adjustment Knob Larger focusing knob

44. Moves stage up and down for focusing • For LOWPOWER ONLY

47. Fine Adjustment Knob Moves the stage slightly to sharpen the image Focus under high power

48. Fine adjustment Let’s summarize…Identify the microscope part described. • Used to focus the specimen under high power. • Adjusts the amount of light reaching the specimen. • Platform slide is placed on. • Objective used to view a larger field of view needed to search for a specimen. • Used to focus specimen under low power • Structure that you look through. • Contains lenses. • Keeps slide in place. • Objective used to view a larger and more magnified view of the specimen. • Objective used to search for a specimen. Diaphragm Stage Low power objective Coarse adjustment Ocular Ocular and objectives Stage clips High power objective Scanning obj.

49. http://www.biologycorner.com/microquiz/#