Parts of the Microscope History Parts of the Microscope Types of Microscopes Slides
What is a monocular?
A microscope having only one eyepiece.
An optical instrument consisting of a lens or several lenses used to view small objects which appear enlarged is known as a
Microscope
A microscope is said to be ________________ when it has two eyepieces
Binocular
The size of the specimen area is known as
The field of view
The working distance is
The distance between the objective lens and the sample
Who invented the first microscope?
Zacharias Janssen, in 1595
Who was Robert Hooke?
Hooke invented the compound microscope.
Who manufactured one lens microscopes and described bacteria and protozoans as seen through the microscope?
Anton van Leeuwenhoek
Who were Max Knoll and Ernst Ruska?
Knoll and Ruska, two Germans, developed the Transmission Electron Microscope in This was the first type of electron microscope.
Who was Sir Charles Oatley?
Oatley was an English engineer who invented the Scanning Electron Microscope.
What is the illuminator?
The illuminator is artificial light used to light up a specimen for viewing.
An objective lens is found closest to the sample (true or false)?
True
The horizontal plate on which the slides of the specimens are placed is known as
The stage.
The hollow tube through which light passes between the objective and the eyepiece is known as
The body tube
Name the two types of adjustment knobs
Coarse and fine
What is the most commonly used microscope?
The compound microscope
What type of microscope allows for side-by-side comparisons of specimens?
The comparison microscope is really two compound microscopes stuck together with one light bridge. This allows you to look through one eyepiece and see the field of two separate microscopes at the same time.
What type of microscope produces a three-dimensional image of an object by focusing on the object from slight different positions on each of two lenses?
A stereoscopic microscope
A polarizing microscope is used to analyze what type of evidence?
Trace evidence (such as glass, soil, hair, and fibers) is analyzed using a polarizing microscope.
The Scanning Electron Microscope allows for magnification to what degree (maximum)?
This ant is magnified 100,000x courtesy of sem.html
A thin preparation of cells that is allowed to dry on a slide is known as
A smear
When a specimen is placed on a drop of water on a slide it is referred to as a
Wet mount
Inanimate objects that do not require water to live are mounted to a slide using this method.
Dry mount
When you fix a slide by passing it over a Bacticinerator 10 times it is known as
Heat fixing
What type of stain is used for a simple stain?
Crystal violet stain