Lab Midterm Flashcards
osculars
eye parts of microscope
focusing knob
corse/fine adjustment
condenser adjustement
keep at highest point
diaphragm
controls amount of light into condenser
Condenser
focuses light on object
objectives
(4x,10x, 40x, 100x)
eyepiece adjustment
on top
magnification of drawing (actual)
size of drawing/ size of object
diameter of field of view (drawing/ actual)
field of view / # fit across
cells combine to form
tissues
tissues combine to make
organism
three main parts of cell
nucleus, cytoplasm, plasma membrane
flagella serves as
locomotory
cilia
moves substances away from cell or along its surface
longitudinal
divides body into left and right halves( back and front)
oblique
oblique angle (not parallel to sagittal or transverse)
cervical
neck
lumbar
lower region
thoracic
chest
cytoplasm is
aqueous solution where solutes are dissolved or suspended
diffusion
(conc. gradient) high to low
polar molecules
like water pass through polar membrane
non-polar
do not diffuse across dialysis tubing
diffusion of water across SPM is
osmosis
osmosis
involves channel proteins (aquaporins)
why did the solution turn blue?
starch is a large molecule and when iodine and starch mix the solution turns blue
what happend to liver solution
began expand and “swell” because H2O2 is small molecule and can move into the cell wheere catalase breaks apart into H2O and O2. Then oxygen can not leave cell (non-polar).
water will move into cells 2,3,4 and will make them
weigh more
if isotonic then the weight
bounces back and forth
sucrose can not
cross membrane(too big molecule)
net movement of water molecules
hypotonic and move from high to low conc.
complex/multicellular organisms are
comprised of many types of cells