Studied by 11 people
Looks like no one added any tags here yet for you.
Where does light enter the system from?
Substage illuminator (lamp) or mirror
What focuses the light?
A condensor
Where is the specimen placed onto?
The stage
Where is the iris diaphragm located?
Between the light source and condenser
Which way do u move the diaphragm to increase intensity?
Right
After light passes the specimen, where does it enter?
Objective lens system
Where does the lens project the light upward into?
Body tube
What magnifies the image to be seen by the eye?
The eyepiece (ocular)
How do u calculate the total magnification?
Multiply the power of eyepiece by power of objective
How do u clean the lenses?
Lens paper
When do u use alcohol for?
Difficult cleaning
What do you use as a last resort cleaning?
Xylene
What is the circular area you can view?
Field of view
What do we measure the field of view in?
Millimeters
What does parfocal mean?
This means that when a specimen is in focus with a lower-power objective, it will be in focus (or nearly so) when a higher-power objective si rotated into Position
The working distance is shorter when using what?
Higher magnifications
Depth of view
Vertical depth of a specimen clearly in focus
how do you prepare a wet mount?
1.) clean microscope with soap
2.) place tiny specimen and use medicine dropper to put a drop of water
3.) cover with coverslip
4.)remove excess water
What is a stereo microscope?
Dissecting microscope used for observing details of large specimens
What are the three major parts of a cell?
Nucleus
Cytoplasm
Plasma membrane
What is the function of the cell membrane?
Regulates movement in and out of the cell and maintains integrity
A membrane that regulates what goes in and out is what
Selectively permeable
The cell membrane consists of a double layer of what
Phospholipid molecules
-includes polar heads, fatty acid tails, lipid tails
What molecules can easily pass through phospholipid molecule?
O, H2O, CO
What proteins are in the plasma membrane?
Globs, rods, fibers
What is the function of carbohydrates?
Cell recognition, adhesion
What is the function of cholesterol?
Stabilizes the membrane
Note 
Flashcard (50)