Drug: Activity, Phases And Classification! Trivia Questions Quiz
The human body and its organs face a lot of dangers from the outside world daily, and the mechanisms it has put in place for safety may at times fail to function correctly, for example, the white blood cells. This being said, there are a number of drugs given out to bring the body back to normal operation. Test your knowledge on drug activity, phases, and classification by taking the test below.
- 1.All of the following are normally involved in the pathogenesis of heart failure EXCEPT:
- A.
A cardiac lesion that impairs cardiac output
- B.
An increase in peripheral vascular resistance
- C.
A decrease in preload
- D.
An increase in sodium and water retention
- 2.This drug has a little or no direct effect on chronotropy and dromotropy at normal doses
- A.
Nifedipine
- B.
Diltiazem
- C.
Verapamil
- D.
All of the above
- 3.What is the best description of blood?
- A.
Sol
- B.
Foam
- C.
Solution
- D.
Aerosol
- 4.A suspension is formed from uniform particles of solid, of diameter 10 Mm, suspended in a solvent. What is the best description of this system?
- A.
Monodisperse and coarse
- B.
Monodisperse and colloidal
- C.
Polydisperse and coarse
- D.
Polydisperse and colloidal
- 5.Which one of the following dispersions does not have liquid continuous phase?
- A.
Nanosuspension
- B.
Microemulsion
- C.
Gel
- D.
Foam
- 6.Which one of the following systems has the smallest sized domains in its dispersed phase?
- A.
Nanoemulsion
- B.
Coarse suspension
- C.
Coarse emulsion
- D.
Microemulsion
- 7.Which of the following sequences correctly describes the change in domain structure as more oil is added to a water-in-oil emulsion?
- A.
Bicontinuous, spherical, cylinder-like
- B.
Spherical, cylinder-like, bicontinuous
- C.
Spherical, bicontinuous, cylinder-like
- D.
Cylinder-like, spherical, bicontinuous
- 8.Which method for the production of dispersions involves the formation of particles from materials dissolved in true solutions?
- A.
Bottom-up
- B.
Top-down
- C.
Milling
- D.
High pressure homogenization
- 9.The scattering of light by coarse and colloidal dispersed systems is known as?
- A.
Contrast matching
- B.
DLVO theory
- C.
Tyndall effect
- D.
Creaming
- 10.Which of the following is not a mechanism for the separation of a physically unstable suspension of magnesium hydroxide in water?
- A.
Flocculation
- B.
Aggregation
- C.
Ostwald ripening
- D.
Hydrolysis
- 11.In the DLVO theory of colloids, normal thermal motion may be sufficient to overcome the energy barrier that leads to irreversible particle aggregation. The name of this energy barrier is which one of the following?
- A.
Primary maximum
- B.
Secondary maximum
- C.
Primary minimum
- D.
Secondary minimum
- 12.In a solution the substance that is being dissolved is called the___
- A.
Solvent
- B.
Emulsifier
- C.
Solute
- D.
Filtrate
- 13.An emulsion is always between___
- A.
Two solids
- B.
A solid and liquid
- C.
Two gases
- D.
Two liquids
- 14.What is one property of a suspension that is different from that of a solution or a colloid?
- A.
If left to rest, the particles of a suspension will settle out.
- B.
The particles of a suspension reflect light.
- C.
A suspension is always clear
- D.
Suspensions are colorless
- 15.A What is the size of particles in a solution?
- A.
More than 10,000 Angstroms
- B.
Between 10,000 and 100,000 Angstroms
- C.
Between 10 and 10,000 Angstroms
- D.
Molecule size
- 16.A solution that cannot hold any more solute at room temperature is ___
- A.
A weak solution
- B.
A concentrated solution
- C.
A saturated solution
- D.
A supersaturated solution
- 17.An example of a colloid which is an emulsion is ___
- A.
Wipped cream
- B.
Mayonnaise
- C.
Fog
- D.
Gelatin
- 18.An example of a solution is ___
- A.
Sugar and water
- B.
Sand and water
- C.
Milk
- D.
Whipped Cream
- 19.Oil floats on water. The most accurate reason for this is
- A.
Oil is less dense than water
- B.
Oil is immiscible (does not dissolve) in water
- C.
Oil is both less dense and immiscible with water
- D.
Water is heavier than oil
- 20.The best method to separate the solute from the solvent in a solution would be ___
- A.
Distillation
- B.
Filtration
- C.
Sedimentation
- D.
All of the above will work
- 21.What makes water such a good solvent?
- A.
Water is a good solvent because it is a negatively charged ion.
- B.
Water is such a good solvent because it repels most molecules
- C.
Water is such a good solvent because it is such a small molecule
- D.
Water is a good solvent due to its polarity and small molecular size
- 22.Which of the following pharmaceutical ingredients has no viscosity enhancing activity?
- A.
Methyl cellulose
- B.
Acacia
- C.
Propylene glycol
- D.
Bentonite
- 23.Which of the following paraben preservatives has the strongest antimicrobial activity?
- A.
Methyl paraben
- B.
Ethyl paraben
- C.
Propyl paraben
- D.
Butyl paraben
- 24.What is NOT true about antioxidants?b. they act by directly interacting with oxygenc. true antioxidants are those that can scavenge oxygen free radicalsd. a reducing agent is not considered an antioxidante. an agent may act as an antioxidant by chelating metal ions
- A.
A and b
- B.
A and c
- C.
B and d
- D.
C and e
- 25.Which of the following buffer systems is commonly used to maintain the pH of liquid preparations in the range of 8-9?
- A.
Citrate buffer
- B.
Borate buffer
- C.
Phosphate buffer
- D.
Bicarbonate buffer
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