Test 2 Flashcards
nosepiece
rotates to change the magnification
coarse/fine adjustment
raises and lowers the stage or objectives for focusing
eyepiece
contains a lens for viewing
objectives
helps magnify the slide
diaphram
adjusts the amount of light to provide contrast on the slide
arm
handle and upper support
base
lower support
stage clips
holds the slide in place
light
illuminates the slide
stage
supports the slide
magnification on low
40x
magnification on medium
100x
magnification on high
400x
field of view on low
4.0-5.0 mm
field of view on medium
2.0 mm
field of view on high
0.6-0.8 mm
diffusion
the movement of a solute from an area of high concentration to an area of low concentration. This process does not require energy. passive.
osmosis
the diffusion of water across the plasma membrane from an area of high concentration to an area of low concentration
equilibrium
when the solution concentrations inside and outside the cell are equal.
passive transport
any process where molecules move from an area of high concentration without energy. diffusion, facilitated diffusion, and osmosis are examples
facilitated diffusion
when a transport protein is used during the diffusion process
integral protein
a protein used for transport that pass through the membrane
peripheral protein
a protein that attaches to only one side of the membrane used for anchoring the cytoskeleton or carbohydrates
carbohydrate tags/chains
chains of polysaccharides attached to the outside of a cell membrane. identify cell type and that it belongs in the body