1 / 24

THE MICROSCOPE

THE MICROSCOPE. Types of Microscopes. Light Electron Transmission Scanning. Light Microscope. Uses ordinary white light to view organisms. Electron Microscope. Uses a beam of electrons to view subject 1000 x more powerful than a light microscope Used mostly by universities and labs

hans
Download Presentation

THE MICROSCOPE

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. THE MICROSCOPE

  2. Types of Microscopes • Light • Electron • Transmission • Scanning

  3. Light Microscope • Uses ordinary white light to view organisms

  4. Electron Microscope • Uses a beam of electrons to view subject • 1000 x more powerful than a light microscope • Used mostly by universities and labs • EXPENSIVE

  5. Transmission • Transmit electron through the sample • TEM

  6. Scanning • Electrons move across the surface of the sample • SEM

  7. Magnification • Ability to make an object larger

  8. Resolution • Ability to distinguish between 2 small or close objects

  9. Field of View • As you increase magnification you decrease field of view**

  10. Microscope Diagram

  11. Eyepiece-Magnifies (10x) BBody Tube

  12. Eyepiece-Magnifies (10x) BBody Tube Revolving Nose Piece Allows change of objective

  13. Eyepiece-Magnifies (10x) BBody Tube Coarse Adjustment Moves objectives quickly Revolving Nose Piece Allows change of objective

  14. Eyepiece-Magnifies (10x) BBody Tube Coarse Adjustment Moves objectives quickly Revolving Nose Piece Allows change of objective Objectives: increase size of object; Short low power 10x Long high power 40x

  15. Eyepiece-Magnifies (10x) BBody Tube Coarse Adjustment Moves objectives quickly Revolving Nose Piece Allows change of objective Objectives: increase size of object; Short low power 10x Long high power 40x Diaphragm: controls amount of light

  16. Eyepiece-Magnifies (10x) BBody Tube Coarse Adjustment Moves objectives quickly Revolving Nose Piece Allows change of objective Objectives: increase size of object; Short low power 10x Long high power 40x Diaphragm: controls amount of light Stage: area on which slide rests

  17. Eyepiece-Magnifies (10x) BBody Tube Coarse Adjustment Moves objectives quickly Revolving Nose Piece Allows change of objective Objectives: increase size of object; Short low power 10x Long high power 40x Diaphragm: controls amount of light Stage: area on which slide rests Mirror or Light Source: sends light thru the slide

  18. Eyepiece-Magnifies (10x) BBody Tube Coarse Adjustment Moves objectives quickly Revolving Nose Piece Allows change of objective Objectives: increase size of object; Short low power 10x Long high power 40x Diaphragm: controls amount of light Stage: area on which slide rests Mirror or Light Source: sends light thru the slide Base: support structure for scope

  19. Eyepiece-Magnifies (10x) BBody Tube Coarse Adjustment Moves objectives quickly Revolving Nose Piece Allows change of objective Arm: offers support to scope Objectives: increase size of object; Short low power 10x Long high power 40x Diaphragm: controls amount of light Stage: area on which slide rests Mirror or Light Source: sends light thru the slide Base: support structure for scope

  20. Eyepiece-Magnifies (10x) BBody Tube Coarse Adjustment Moves objectives quickly Revolving Nose Piece Allows change of objective Arm: offers support to scope Objectives: increase size of object; Short low power 10x Long high power 40x Stage Clip: holds slide in place Diaphragm: controls amount of light Stage: area on which slide rests Mirror or Light Source: sends light thru the slide Base: support structure for scope

  21. Eyepiece-Magnifies (10x) BBody Tube Coarse Adjustment Moves objectives quickly Revolving Nose Piece Allows change of objective Arm: offers support to scope Objectives: increase size of object; Short low power 10x Long high power 40x Stage Clip: holds slide in place Diaphragm: controls amount of light Stage: area on which slide rests Fine Adjustment: moves objective slowly Mirror or Light Source: sends light thru the slide Base: support structure for scope

  22. How to Carry a Microscope • One hand holding the arm • One hand under the base • Must follow these rules to prevent accidents

  23. Types of Cells • Prokaryotic: no nucleus • Eukaryotic: true nucleus • Only prokaryotic group is bacteria • Eukaryotic groups are fungi, protists, plants and animals

More Related