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bio lab test
1
57
Biology
Undergraduate 1
02/13/2012

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Term
the volume of water in a graduated cylinder units
Definition
ml
Term
meniscus
Definition
the curve of liquid
Term
oculars
Definition
eyepiece
Term
nosepiece
Definition
change objective
Term
objectives
Definition
magnify image
Term
stage
Definition
put slide on it
Term
condenser
Definition
control size of beam
Term
diaphragm
Definition
brightness
Term
two types of lenses in our compound scope.
Definition
Objective and ocular
Term
Know which microscope (dissecting, compound, or electron) would be used to look at cell, seastar, virus
Definition
compound, dissecting, electron
cde- big to small
Term
When performing the procedures for the following tests, what was always used for the negative control?
Definition
Negative control is water
Term
What are the monomers for proteins?
Definition
Amino acid
Term
What reagent is used to test for protein?
Definition
Biuret
Term
What color indicates the presence of protein?
Definition
blue
Term
What color indicates the absence of protein?
Definition
purple
Term
What are the monomers for starch?
Definition
Mono-saccharides or glucose
Term
What reagent is used to test for starch?
Definition
iodine
Term
What color indicates the presence of starch?
Definition
black
Term
What color indicates the absence of starch?
Definition
amber
Term
What reagent is used to test for monosaccharides?
Definition
Benedict
Term
What color(s) indicates the presence of monosaccharides?
Definition
Any color
Term
What color indicates the absence of monosaccharides?
Definition
Sky blue
Term
How did we test for presence of lipids?
Definition
Brown paper towel test
Term
positive for lipid and negative
Definition
grease spot, nothing
Term
What does the solution in the test tube look like when mixing a polar and a nonpolar solution?
Definition
the separation
Term
What are examples of polar and nonpolar solutions?
Definition
Polar is water, nonpolar are oil acetone
Term
What are the monomers for nucleic acids?
Definition
Nucleotide
Term
What reagent is used to test for nucleic acids?
Definition
Diphenylamine
Term
What color indicates the presence of n.a.?
Definition
2 positives, dna - purple blue, rna - brown
Term
negative result color of nucleic acid
Definition
clear
Term
Prokaryotic Cells and Eukaryotic
Definition
Pro has no nucleus, Eu has nucleus
Term
Are Oscillatoria, Gloeocapsa, and Lactobacillus cells prokaryotic or eukaryotic?
Definition
Pro – no nucleus
Term
squamous epithelial cells taken from the inside of the cheek
Definition
blue
Term
human cheek cell membrane
Definition
outside of the cell
Term
human cheek nucleus
Definition
blue ball
Term
Amoeba - pseudopodia
Definition
finger-like
Term
amoeba - nucleus
Definition
big pink or purple ball
Term
does Onion epidermal cells has nucleus?
Definition
yes
Term
plant cells has cell wall or membrane?
Definition
cell wall
Term
elodea chloroplasts
Definition
green ball
Term
potato cell with iodine - amyloplasts
Definition
purple ball
Term
substance inside the amyloplasts
Definition
starch
Term
Diffusion
Is the net movement of substances from
Definition
high concentration to low concentration
Term
Is diffusion faster when using a dye with a high molecular weight or a low molecular weight?
Definition
The low
Term
Experimental set-up: starch in the beaker, iodine in the bag. After 30 minutes
Definition
iodine leaves the bag, turn purple; weight of bag gets ligher
Term
Experimental set-up: iodine in beaker, starch in the bag. After 30 minutes
Definition
bag will have starch, turn purple; weight gets heavier
Term
Which solution is hypotonic to blood cells?
Definition
distilled water
Term
Which solution is hypertonic to blood cells?
Definition
10% NaCl
Term
Which solution is isotonic to blood cells?
Definition
0.9% NaCl
Term
Do blood cells gain or lose water in a hypotonic solution?
Definition
gain, hemolyzed
Term
How does a test tube of blood appear when cells are in a hypotonic solution?
Definition
clear red
Term
Do blood cells gain or lose water in a hypertonic solution?
Definition
lose, crenated
Term
How does a test tube of blood appear when cells are in a hypertonic solution?
Definition
Cloudy red
Term
What effect does an isotonic solution have on blood cells?
Definition
nothing
Term
What molecule moved in or out of the cells? By what process?
Definition
water, osmosis
Term
Red onion on a slide ( in distilled water)
Definition
appear bold, hypotonic, turgid
Term
red onion (in 15% NaCl)
Definition
shiver up, lots of white, little bit of red, hypertonic, plasmolyzed
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