Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
7 Cards in this Set
- Front
- Back
|
Leeuwenhoek
|
This historic microscope allows researchers to see clear images of organisms when held up to the eye.
|
|
|
Brightfield
|
Image is viewed against a bright background.
|
|
|
Darkfield
|
Image is bright against a dark background
|
|
|
Fluorescence
|
Requires specimen be treated with special fluorescent stains. When viewed through this microscope, certain cell structures or types of substances glow.
|
|
|
Transmission Electron Microscope
|
Aims a beam of electrons through a specimen. Denser portions of the specimen allow fewer electrons to pass through and appear darker in the image.
|
|
|
Phase-Contrast
|
Emphasizes slight differences in a specimen's capacity to bend light waves, thereby enhancing light and dark regions without the use of stains.
|
|
|
Scanning Electron
|
Sweeps a beam of electrons over a specimens surface, causing other electrons to be emitted from the specimen. Produces realistic three dimensional images, which can only be viewed as photographs on a monitor.
|
