Bio 105 Lab Lecture 1 Flashcards
The amount an image is enlarged
Magnification
The extent to which image detail is preserved
Resolution / Resolving Power
The ability of an image to stand out against its background
Contrast
Default Ocular magnification
10x
The least powerful objective lens totaling 40x magnification
Scanning Lens
Moderate power objective lens totaling 100x Magnification
Low Lens
Higher power objective lens totaling 400x Magnification
High Dry Lens
The distance from the Stage of the microscope to the objective lens
Working Distance
When you change lenses the image will always remain in focus
Parfocal
When you switch objective lenses the image will stay in the center of your field of view
Parcentral
Two examples of Light Microscopes
Compound Light Microscope
Stereo Dissecting Microscope
Two examples of Electron Microscpes
Scanning Electron Microscope
Transmission Electron Microscope
Maximum magnification of a Light Microscope
1000x
The types of specimens that can be viewed under a light Microscope
Living or Non-living
Does a Light Microscope produce a Black and White or a Color image?
Color Image
This Microscope produces 3D views of surfaces of specimens. Also appropriate for use on larger specimens
Stereo-Dissecting Microscope
This microscope produces 2D Views of specimen. Used to view thin sections of specimens, though light must be able to transmit through them
Compound Light Microscope
Total possible magnification of an Electron Microscope
350,000x
Can Electron Microscopes view living specimens?
No, non-living specimens only
Do Electron Microscopes produce a Black and White or a Color image?
Black and White
Of the two types of Electron Microscopes, this one creates a 2D image based on transmitted electrons
Transmission Electron Microscope
Of the two types of Electron Microscopes, this one creates a 3D images based off reflected or knocked-off electrons
Scanning Electron Microscope
