PHA317 - Pharmaceutics Exam 2 Quiz 9
UPDATED ACTUAL Questions and
CORRECT Answers
the rate of reaction is dependent of the concentration of reactants - CORRECT ANSWER -
first and second order
the half life = 0.693/k - CORRECT ANSWER - first order reaction
the half life = C0/2k - CORRECT ANSWER - zero order reaction
the rate of the reaction is independent of the concentration of the reactants - CORRECT
ANSWER - zero order
what is the remaining concentration (a-x) in mg/mL of a drug (initial concentration is 7 mg/mL)
after a time equivalent to 3 half-lives assuming that the decomposition follow first-order kinetics
- CORRECT ANSWER - 0.875 mg/mL
solution: half life = 7/2, second half life = 3.5/2, third half life = 1.75/2; answer 0.875
at very low substrate concentration (Km >> [S]), the velocity - CORRECT ANSWER - is
directly proportional to substrate concentration
at very high substrate concentration ([S] >> Km), the velocity - CORRECT ANSWER - is
independent of substrate concentration
drugs containing the following functional groups ester, aminde, lactone, and lactum are
susceptible to chemical degradation by hydrolysis - CORRECT ANSWER - true
what is effective against photolysis - CORRECT ANSWER - -using amber colored
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UPDATED ACTUAL Questions and
CORRECT Answers
the rate of reaction is dependent of the concentration of reactants - CORRECT ANSWER -
first and second order
the half life = 0.693/k - CORRECT ANSWER - first order reaction
the half life = C0/2k - CORRECT ANSWER - zero order reaction
the rate of the reaction is independent of the concentration of the reactants - CORRECT
ANSWER - zero order
what is the remaining concentration (a-x) in mg/mL of a drug (initial concentration is 7 mg/mL)
after a time equivalent to 3 half-lives assuming that the decomposition follow first-order kinetics
- CORRECT ANSWER - 0.875 mg/mL
solution: half life = 7/2, second half life = 3.5/2, third half life = 1.75/2; answer 0.875
at very low substrate concentration (Km >> [S]), the velocity - CORRECT ANSWER - is
directly proportional to substrate concentration
at very high substrate concentration ([S] >> Km), the velocity - CORRECT ANSWER - is
independent of substrate concentration
drugs containing the following functional groups ester, aminde, lactone, and lactum are
susceptible to chemical degradation by hydrolysis - CORRECT ANSWER - true
what is effective against photolysis - CORRECT ANSWER - -using amber colored
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