MCAT Prep Exam Questions and
Answers 100% Verified
Compound 1 is used to treat HIV infection based on its ability to act as: - ANSWER -
An antagonist
How many stereoisomers of compound 1 exist? - ANSWER - 32
Why do kidney stones from in some individuals treated with compound 1? - ANSWER
- [ca^2+][c2o4^2-]>ksp
The peptide bond between which two amino acid residues is cleaved by hiv
protease? - ANSWER - Phe and pro
Which image best illustrates the electric field lines between the inside of an axon
and the surrounding extra cellular solution? - ANSWER - B
One function of a myelin sheath is to - ANSWER - Insulate the axon from the
surroundings
Channel x transmits only the smallest substances dissolved in the extra cellular fluid
through the axon membrane. Which substance does channel x transmit? - ANSWER
- Sodium ions
What is the closest distance the electrodes used in an NCV test can be placed on a
nerve in order to measure the voltage change as a response to the stimulus? -
ANSWER - 0.1 m
What info about an axon is required to calculate the current associated with an NCV
pulse? - ANSWER - Potential, resistance per unit length, and length.
,What was the ph of the unknown aqueous solution? - ANSWER - 5 or 1x 10^-5
Suppose that at the end of reaction 1 the level of the aqueous solution were 26 cm
higher inside the hurst than outside. Compared to ambient pressure the pressure of
the gas inside the burst would be: - ANSWER - Lower
How should the ideal gas equation be rearranged to most easily use the values from
the experiment in the passage to calculate the gas constant? - ANSWER - R= PV/NT
What was the major goal of the experiment in the passage? - ANSWER - To
determine the measure variables of the ideal gas law
The unknown compound was probably a - ANSWER - Weak acid
2 additional compounds were studied: no2(oh) dissolved in water and produced and
acidic solution and ni(oh)2 dissolved only in an acidic solution. What type of
compounds were these? - ANSWER - No2(oh)= oxyacid
Ni(oh)2= base
The central atom, A, of the unknown compound was most likely - ANSWER - A
nonmetal
Squalenebis produxed in the human body as a precursor to which important class of
compounds? - ANSWER - Steroid hormones
What is the concentration of compounds cl- ions in a 0.1 M solution of calcium
chloride? - ANSWER - 0.2 M
Addition of which disaccharide to a solution of Ag2o in NH3 will not result in the
deposition of silver mirrored walls of the reaction vessel? - ANSWER - Sucrose
What is the net charge of the peptide ATG-ala-phe-leu at ph 8? - ANSWER - +1
, Researchers used golf to separate compound 2 from compound 1. Which statement
accurately describes this process? - ANSWER - Compound 2 will elite first because it
does not interact as favorably with the stationary phase as compound 1
Which data suggest that the difference in compound 1 metabolism between the
variant and wild type cyp2c9 enzymes are NOt due to changes in the binding
affinity towards compound 1? - ANSWER - The km values for the variant enzymes do
not differ significantly from the wild type enzyme
If the data used to generate the kinetic parameters in table 1 were displayed in a
line weaver burk plot with y intercept: - ANSWER - Different for all 3 variants
The overall reaction scheme for enzymes of the cyp450 enzyme family is shown
with R representing the substrate-
In this reaction and ph functions as - ANSWER - A reducing agent
What type of reaction is reaction 1? - ANSWER - Oxidation/reduction
The average human body contains approximately 5 liters of blood. If the blood has a
density of 1060 kg/m3 what is the total mass of blood in the average human? (1L =
1000 cm3) - ANSWER - 5.30 kg
An ultrasound exam could show the motion of a fetus. In order to image this motion
the the ultrasound devices requires what minimal info? - ANSWER - The speed of the
sound and the frequencies of the sound f waves emitted and observed
Which of the following statements explains why the boiling point of HF is abnormally
high when compared to the boiling points of other group 7a hydrides? - ANSWER -
HF is affected by hydrogen bonding interactions to a much greater degree than
other group 7a hydrides
The principal quantum number is a measure of which of the following? - ANSWER -
Approximate radial size of an electron cloud
Metal ions present in plasma are expected to - ANSWER - Decrease the amount of
cpfx bound to bsa
Answers 100% Verified
Compound 1 is used to treat HIV infection based on its ability to act as: - ANSWER -
An antagonist
How many stereoisomers of compound 1 exist? - ANSWER - 32
Why do kidney stones from in some individuals treated with compound 1? - ANSWER
- [ca^2+][c2o4^2-]>ksp
The peptide bond between which two amino acid residues is cleaved by hiv
protease? - ANSWER - Phe and pro
Which image best illustrates the electric field lines between the inside of an axon
and the surrounding extra cellular solution? - ANSWER - B
One function of a myelin sheath is to - ANSWER - Insulate the axon from the
surroundings
Channel x transmits only the smallest substances dissolved in the extra cellular fluid
through the axon membrane. Which substance does channel x transmit? - ANSWER
- Sodium ions
What is the closest distance the electrodes used in an NCV test can be placed on a
nerve in order to measure the voltage change as a response to the stimulus? -
ANSWER - 0.1 m
What info about an axon is required to calculate the current associated with an NCV
pulse? - ANSWER - Potential, resistance per unit length, and length.
,What was the ph of the unknown aqueous solution? - ANSWER - 5 or 1x 10^-5
Suppose that at the end of reaction 1 the level of the aqueous solution were 26 cm
higher inside the hurst than outside. Compared to ambient pressure the pressure of
the gas inside the burst would be: - ANSWER - Lower
How should the ideal gas equation be rearranged to most easily use the values from
the experiment in the passage to calculate the gas constant? - ANSWER - R= PV/NT
What was the major goal of the experiment in the passage? - ANSWER - To
determine the measure variables of the ideal gas law
The unknown compound was probably a - ANSWER - Weak acid
2 additional compounds were studied: no2(oh) dissolved in water and produced and
acidic solution and ni(oh)2 dissolved only in an acidic solution. What type of
compounds were these? - ANSWER - No2(oh)= oxyacid
Ni(oh)2= base
The central atom, A, of the unknown compound was most likely - ANSWER - A
nonmetal
Squalenebis produxed in the human body as a precursor to which important class of
compounds? - ANSWER - Steroid hormones
What is the concentration of compounds cl- ions in a 0.1 M solution of calcium
chloride? - ANSWER - 0.2 M
Addition of which disaccharide to a solution of Ag2o in NH3 will not result in the
deposition of silver mirrored walls of the reaction vessel? - ANSWER - Sucrose
What is the net charge of the peptide ATG-ala-phe-leu at ph 8? - ANSWER - +1
, Researchers used golf to separate compound 2 from compound 1. Which statement
accurately describes this process? - ANSWER - Compound 2 will elite first because it
does not interact as favorably with the stationary phase as compound 1
Which data suggest that the difference in compound 1 metabolism between the
variant and wild type cyp2c9 enzymes are NOt due to changes in the binding
affinity towards compound 1? - ANSWER - The km values for the variant enzymes do
not differ significantly from the wild type enzyme
If the data used to generate the kinetic parameters in table 1 were displayed in a
line weaver burk plot with y intercept: - ANSWER - Different for all 3 variants
The overall reaction scheme for enzymes of the cyp450 enzyme family is shown
with R representing the substrate-
In this reaction and ph functions as - ANSWER - A reducing agent
What type of reaction is reaction 1? - ANSWER - Oxidation/reduction
The average human body contains approximately 5 liters of blood. If the blood has a
density of 1060 kg/m3 what is the total mass of blood in the average human? (1L =
1000 cm3) - ANSWER - 5.30 kg
An ultrasound exam could show the motion of a fetus. In order to image this motion
the the ultrasound devices requires what minimal info? - ANSWER - The speed of the
sound and the frequencies of the sound f waves emitted and observed
Which of the following statements explains why the boiling point of HF is abnormally
high when compared to the boiling points of other group 7a hydrides? - ANSWER -
HF is affected by hydrogen bonding interactions to a much greater degree than
other group 7a hydrides
The principal quantum number is a measure of which of the following? - ANSWER -
Approximate radial size of an electron cloud
Metal ions present in plasma are expected to - ANSWER - Decrease the amount of
cpfx bound to bsa
