Welcome to Dr. Kate Brilakis' Learning Portal
pond water
when viewing a living specimen, keep your light low...
light = heat
and a strong light will will fry the little guy ;(
preparing a
wet mount slide
as magnification increases, your light intensity decreases so you should open your iris to add light
cocci bacilli spririla
your cheek cells
very cool electron scope images
total magnification =
ocular magnification
X
objective magnification
always start to focus using the lowest magnification
--->
bacterial cell shapes and orientations
using oil immersion lens
at 1000X total magnification
plant cells
diplo = two
strepto = chain
staphlo = cluster
The Microscope
as magnification increases, the area of the field of view decreases
the optical oil forms an interface between the slide and the objective,
reducing extraneous light and sharpening image