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Human Biology Lab 1
Human Biology Lab 1, microscope
10
Biology
Undergraduate 2
11/11/2011

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Term
Microscope
Definition
an optical instrument that uses a lens or combination of lenses to produce a magnified image of a small, close object.
Term
simple microscope 
Definition
has a single lens - an example would be a magnifying glass
Term
compound microscope
Definition
 image is compounded by lens systems, which inables us to view smaller specimens.
Term
magnification
Definition
is the process of enlarging s/t only in apperance, not in physical size.
Term
resolution
Definition
 the ability to see two small objects, that are close together, as separate objects. 
Term
inverted image
Definition
an image formed by the covergence of the actual rays of light from an object.
Term
deapth of field
Definition
 is the thickness of the specimen that is acceptably sharp at a given focus level.
Term
wet mount 
Definition

Function:

are useful for viewing living biological material.

>place the specimen on a slide

> add a drop of water or stain. 

>place a cover slip at an angle so that it touches the drop. Slowly lower the raised end of the cover slip.

 

Term
permanent slides
Definition
may be prepared long before the slide is used and will include only dead specimens.
Term
temporary slide
Definition
same as wet mount and prepared in the lab right before use.
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