BIO 201 LAB EXAM 1 WITH
CORRECT ANSWERS 2025
Mohr pipette correct answers >> not graduated to the tip,
there is a line for 10 ml therefore it will contain more than 10 ml if
filled to the 0 ml line
Serological pipette correct answers >> graduated all the way
to the tip
How much does the green pump carry? correct answers >>
10 ml max
How much does the blue pump carry? correct answers >> 2
ml max
How do you convert grams of water to ml? correct answers >>
0.998 g/ml
Percent error correct answers >> ((measured value -
theoretical value)/(theoretical value)) x 100
Mean correct answers >> calculated central value; average
Median correct answers >> middle number in set of data
, Range correct answers >> difference between the lowest
and highest values
Variance correct answers >> sum (measured value for each
sample - mean)^2 / (n-1) one less than number of observation
Standard Deviation correct answers >> the square root of
the variance
Dehydration correct answers >> water molecule is removed
in order to form a bond; requires energy
Hydrolysis correct answers >> requires water molecule in
order to break a bond and release energy
Positive control correct answers >> sample that controls
what test identifies; confirms test is working; allows for
comparison to see what a positive result looks like
Negative Control correct answers >> sample that does NOT
contain what test identifies (usually solvent); confirms no false
positives; allows for comparison
Carbohydrate correct answers >> used for energy, energy
storage, and structure
Monosaccharide correct answers >> simple sugars, such as
glucose or fructose
CORRECT ANSWERS 2025
Mohr pipette correct answers >> not graduated to the tip,
there is a line for 10 ml therefore it will contain more than 10 ml if
filled to the 0 ml line
Serological pipette correct answers >> graduated all the way
to the tip
How much does the green pump carry? correct answers >>
10 ml max
How much does the blue pump carry? correct answers >> 2
ml max
How do you convert grams of water to ml? correct answers >>
0.998 g/ml
Percent error correct answers >> ((measured value -
theoretical value)/(theoretical value)) x 100
Mean correct answers >> calculated central value; average
Median correct answers >> middle number in set of data
, Range correct answers >> difference between the lowest
and highest values
Variance correct answers >> sum (measured value for each
sample - mean)^2 / (n-1) one less than number of observation
Standard Deviation correct answers >> the square root of
the variance
Dehydration correct answers >> water molecule is removed
in order to form a bond; requires energy
Hydrolysis correct answers >> requires water molecule in
order to break a bond and release energy
Positive control correct answers >> sample that controls
what test identifies; confirms test is working; allows for
comparison to see what a positive result looks like
Negative Control correct answers >> sample that does NOT
contain what test identifies (usually solvent); confirms no false
positives; allows for comparison
Carbohydrate correct answers >> used for energy, energy
storage, and structure
Monosaccharide correct answers >> simple sugars, such as
glucose or fructose
