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MCAT PRACTICE EXAM- 122 QUESTIONS WITH 100% CORRECT ANSWERS.|GUARANTEED SUCCESS
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MCAT PRACTICE EXAM- 122 QUESTIONS WITH 100% CORRECT ANSWERS.|GUARANTEED SUCCESS
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MCAT - Practice Test Review Questions1. What factors do you have to consider when estimating lag times of
digested pills?: 1) Density of the polymers/molecules used in the drug, 2)
Ratio of polymers/molecules to drugs used.
2. How can you account for density when considering pill digestion times?:
Multiply the density of the product by the fraction of the solution that it takes up.
Ex: 1:3 ratio of drug to polymer --> (1/4)*(density of drug) + (3/4)*(density of
polymer)
3. When is a molecule aromatic?: 1) closed chain structures
2) conjugation (double bonds not being interrupted by single bonds)
4. What is the pOH in acidic solutions?: Greater than 7
(Exp: If there is an acidic solution, this must mean that the pH is low. pH + pOH =
14, so pOH must be greater than 7.)
5. How does Poiseuille's Law demonstrate the changes in pressure related
to the radius of a blood vessel? Which factor has the largest effect on
resistance to laminar flow through a vessel?: Poiseuille's equation:
Numerators: À, pressure gradient (P), r^4
Denominators: 8, viscosity (·), length
So, pressure and radius are proportional to the rate of flow & viscosity and length
are inversely proportional.
Because it is to the fourth power, radius is the strongest factor that can change
this. 6. What factors may contribute to drugs causing stomach pain or
inflammation?: Low solubility --> This can lead to partially undissolved
remains/solids that can irritate the tissue.
7. Power Vs. Work: P = Work/Time
Work = ”E
P = ”E/Time
8. Which of the following best explains why, at a constant voltage, warmer
solutions are ejected more quickly than cooler ones?: The surface tension
is lower for solutions at higher temperatures.
9. What is ²- decay?: Radioactive disintegration by which some unstable atomic
nuclei spontaneously dissipate excess energy and undergo a change of one
unit of positive charge without any change in mass number.
” - a neuton is converted to a proton and an electron is emitted, so the atomic
number decreases by 1!
10. What is ±decay? : nuclear decay process where an unstable nucleus
changes to another element by shooting out a particle composed of two
protons and two neutrons, meaning it basically releases an He nucleus
11. What is a chiral carbon?: Carbon atom with four different groups attached
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