Exam (elaborations)
MCAT AAMC PRACTICE EXAM 1
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MCAT AAMC PRACTICE EXAM 1
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MCAT AAMC PRACTICE EXAM 1When looking at paper chromatography - Answers- focus on the stationary phase- if
solute is same as stationary it will stop here, if opposite of stationary it will elute (polar
vs nonpolar)
Rf in paper chromatography - Answers- ratio of the distance traveled by the analyte
relative to the solvent front during chromatographic separation
If both cis and trans forms are produced then - Answers- the reaction is not
stereospecific
What functional group forms during peptide bond formation between amino acids -
Answers- an amide group
The first peak in a gas chromatograph (gc trace) would be - Answers- the one with the
lowest molecular weight or weakest intermolecular forces of attraction
-it would migrate the fastest making the first peak
Thin lens formula - Answers- S= 1/o + 1/i
S is the strength of the persons eye lens
Adding strong acid to weak acid will - Answers- decrease the amount of ionization of
the weak acid
-eg adding HCl to CH3CO2H will decrease the percent ionization of acetic acid
Why is the velocity of blood flow slower in capillaries than in arteries - Answers- the
total cross-sectional area of capillaries exceeds that of arteries
Octahedral compounds - Answers- have six sigma bonds and no lone pairs so d^2sp^3
orbitals of the central atom
Ideal Gas refers to a gas in which - Answers- individual molecular volume and
intermolecular forces are considered negligible
Opsins - Answers- function to enable the detection of different colors
-there are a variety of different structurally related opsins to detect a variety of colors
Given a molecule that is largely made of C and H - Answers- the binding site is most
likely hydrophobic like the molecule itself
Lipase - Answers- hydrolyzes fatty acids
Comparing graph with pH 7 to one with pH 4 what is the H ion concentration difference -
Answers- 7-4=3 but because logarithmic it is 10^3= 1000 increase in proton
concentration
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