Transcript Aim: What instruments have aided in our knowledge of the cell?

Aim: What
instruments have
aided in our
knowledge of the cell?
What do you know
about viruses?
They can make
you very sick
They can be
transmitted from
person to person
There are
different types of
viruses
HOW BIG IS A VIRUS?
Too small to be seen with a
light microscope
•They are
microscopic and
smaller than cells!
Electron
Microscope
 Used to view extremely
small structures inside cells
& viruses
 Utilizes an electron beam
instead of a light beam
 Can magnify up to a
million times
 Subject must be dead and
dry
Light Microscope
 Our microscope
has a maximum
magnification of
400x.
 Useful for
viewing larger
organisms like
bacteria and
paramecium.
What if you want to
separate a mixture?
Use A
Centrifuge
How does a centrifuge
separate things?
 According to
their density !