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590+ Biopharmaceutics and Pharmacokinetics Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Pharmacy (B. Pharma) .

Chapters

Chapter: Absorption
101.

For oral formulation, what should be the minimum aqueous solubility to avoid bioavailability problems?

A. 0.9%
B. 1%
C. 2%
D. 0.11%
Answer» B. 1%
102.

The total solid surface area of any particle is known as ___________

A. Absolute surface area
B. Effective surface area
C. Total surface area
D. Surface area
Answer» A. Absolute surface area
103.

Particle size and surface area of a drug are directly related to each other.

A. True
B. False
C. none
D. all
Answer» B. False
104.

Absolute surface area is proportional to the dissolution rate of a drug.

A. True
B. False
C. none
D. all
Answer» B. False
105.

In the case of hydrophobic drugs, micronization results in a decrease in effective surface area and thus fall is dissolution rate. Which of the below sentences cannot be a reason for the given statement?

A. The hydrophobic surface of the drugs adsorbs onto their surface which inhibits their wettability
B. The particles reaggregate to form larger particles due to their high surface free energy
C. Extreme reduction in the particle size imparts surface charges that may prevent wetting
D. Extreme reduction in the size brings the hydrophobic amino acids to the surface
Answer» D. Extreme reduction in the size brings the hydrophobic amino acids to the surface
106.

How the absolute surface area of hydrophobic drugs can be converted to their effective surface area?

A. Use of surfactant
B. Use of Hydrophobic diluents
C. Use of surfactant and hydrophilic diluents
D. No need of doing micronization
Answer» C. Use of surfactant and hydrophilic diluents
107.

Which one of these is not an example of hydrophilic diluents?

A. PVC
B. Dextrose
C. PVP
D. PEG
Answer» A. PVC
108.

The solvate can exist in different crystalline forms called as _________

A. Solvates
B. Pseudopolymorphs
C. Pseudopolymorphism
D. Hydrate
Answer» B. Pseudopolymorphs
109.

Which form of a drug has greater solubility?

A. Anhydrous
B. Hydrate
C. Crystallised
D. Monohydrate
Answer» A. Anhydrous
110.

Which one will be the easiest approach to enhance the solubility and dissolution of any drug?

A. Micronize the drug
B. Convert drug into their anhydrous form
C. Convert drug into their hydrous form
D. Convert drug into their salt form
Answer» D. Convert drug into their salt form
111.

What is pH?

A. –ve log of H+ concentration
B. +ve log of H+ concentration
C. Log of H+ concentration
D. H+ concentration
Answer» A. –ve log of H+ concentration
112.

Which one of these is not an advantage of buffered aspirin tablets?

A. Enhanced bioavailability
B. Reduced gastric irritation
C. Increased stability
D. Increased ulcerogenic tendency
Answer» D. Increased ulcerogenic tendency
113.

Larger the size of the counterion, greater the solubility.

A. True
B. False
C. none
D. all
Answer» B. False
114.

Which of the following will be the slowest step in tablet drug absorption?

A. Tablet disintegration to granules
B. Granules disintegration to fine particles
C. Fine particles dissolution
D. Dissolution absorbed into the blood
Answer» A. Tablet disintegration to granules
115.

Aging of dosage form affects drug release.

A. True
B. False
C. none
D. all
Answer» A. True
116.

Which form of the drug has the highest bioavailability?

A. Coated tablets
B. Solutions
C. Tablets
D. Emulsions
Answer» B. Solutions
117.

Why emulsion dosage form for lipophilic drug proved better?

A. Easy manufacturing
B. The higher stability of the drug in emulsion form
C. Presented a large surface area of oil to the GIT for the absorption of the drug
D. Fast clearance from the plasma
Answer» C. Presented a large surface area of oil to the GIT for the absorption of the drug
118.

Which is the major rate-limiting step in the absorption of a drug from suspension dosage?

A. Tablet disintegration to granules
B. Granules disintegration to fine particles
C. Fine particles dissolution
D. Dissolution absorbed into the blood
Answer» C. Fine particles dissolution
119.

Which coating is thin and dissolves rapidly?

A. Sugar coating
B. Film coating
C. Enteric coating
D. Sealing coating
Answer» B. Film coating
120.

Which option describes the function of the enteric coated drug?

A. Tough dissolves slowly
B. Thin dissolves completely
C. Dissolves only in alkaline pH of the intestine
D. Shellac coating
Answer» C. Dissolves only in alkaline pH of the intestine
121.

Hydrophobic drug with fine particle size in capsule results in a decreasing porosity of powder bed.

A. True
B. False
C. none
D. all
Answer» A. True
122.

Viscous fluids and oils are administered in hard gelatin capsules.

A. True
B. False
C. none
D. all
Answer» B. False
123.

From the below options which will be the most widely used form of dosage?

A. Emulsion
B. Solutions
C. Tablets
D. Powders
Answer» A. Emulsion
124.

In cell membrane the hydrocarbon chains for hydrophilic phase and the polar heads form hydrophobic phase.

A. True
B. False
C. none
D. all
Answer» B. False
125.

Proteins interact with which part of the cell membrane?

A. Hydrophobic tail
B. Polar head
C. Non polar head
D. Hydrophilic tail
Answer» A. Hydrophobic tail
126.

Which part of the membrane is responsible for the relative impermeability of polar molecules in and out of the cell?

A. Polar head
B. Hydrophobic head
C. Hydrophobic core
D. Non polar head
Answer» C. Hydrophobic core
127.

What helps in the passing of inorganic ions?

A. Ion channels
B. Voltage gated channels
C. Aqueous filled pores
D. Diffusion
Answer» C. Aqueous filled pores
128.

The cell membrane is ___________

A. Impermeable
B. Semipermeable
C. Permeable
D. Permeable to only gases
Answer» B. Semipermeable
129.

What is the most important characteristic of a drug to be absorbed after oral administration?

A. Dissolved in HCL
B. Dissolved in alkaline solution
C. Can pass through the cell membrane
D. Form aggregate and settle down
Answer» C. Can pass through the cell membrane
130.

Cell membrane can pass easily Oxygen and Carbon dioxide.

A. False
B. True
C. none
D. all
Answer» B. True
131.

Which one of these is an example of Enteral Route?

A. Skin
B. IV
C. Gastrointestinal
D. Inhalation
Answer» C. Gastrointestinal
132.

Gastrointestinal route is an example of which of the major drug delivery routes?

A. The enteral route
B. The parenteral route
C. The topical route
D. The intravenous route
Answer» A. The enteral route
133.

Which form of drug formulation has disintegration time?

A. Injections
B. Syrups
C. Capsules and Tablets
D. Only tablets
Answer» C. Capsules and Tablets
134.

Which tablets have longer Disintegration time?

A. Single coated tablets
B. Uncoated tablets
C. Sugar-coated tablets
D. Capsules
Answer» C. Sugar-coated tablets
135.

Disintegration time is directly proportional to the amount of binder present in the tablet.

A. True
B. False
C. none
D. all
Answer» A. True
136.

Which of the following is not a form of excipients?

A. Paracetamol
B. Disintegrants
C. Lubricants
D. Binders
Answer» A. Paracetamol
137.

Which of the following is not a limitation granulation?

A. Formation of crystal bridge by the presence of liquid
B. The liquid may act as a medium for affecting chemical reactions such as hydrolysis
C. Increase the cost due to more additional processing
D. The drying step may harm the thermolabile drugs
Answer» C. Increase the cost due to more additional processing
138.

The agglomerative phase of the communication method grinds the drug in a ball mill for a long time to affect spontaneous agglomeration. But results showed tablets produced are softer.

A. True
B. False
C. none
D. all
Answer» B. False
139.

Which of these is not a characteristic of tablet formulation by Agglomerative phase of the communication process?

A. Tablets are stronger
B. Usage of more binding agent
C. Rapid dissolution
D. Increase in internal surface area of the granules
Answer» B. Usage of more binding agent
140.

What does the graph of Rate of Drug dissolution v/s Compression force with this type of curve interpret?

A. Tight binding of the molecules in drug
B. Deformation of the drug particles into smaller particles
C. The influence of compression force on the dissolution rate is difficult
D. Both tight bonding and deformation of the drug molecules
Answer» A. Tight binding of the molecules in drug
141.

What does the graph of Rate of Drug dissolution v/s Compression force with this type of curve interpret?

A. Tight binding of the molecules in drug
B. Deformation of the drug particles into smaller particles
C. The influence of compression force on the dissolution rate is difficult
D. Both tight bonding and deformation of the drug molecules
Answer» D. Both tight bonding and deformation of the drug molecules
142.

Capsules with bigger particles and intense packing have poor drug release and dissolution rate due to an increase in the pore size.

A. True
B. False
C. none
D. all
Answer» B. False
143.

Which one of them is not a common form of excipients of drug manufacturing?

A. Diluents
B. Binders
C. Sweeteners
D. Essential oils
Answer» D. Essential oils
144.

Vehicles are the solvent system for the liquefied drug. Which one of them is not an example of a kind of vehicle?

A. Aqueous vehicle
B. Non-aqueous water-miscible vehicles
C. Non-aqueous water immiscible vehicles
D. A salt solution of the drug
Answer» D. A salt solution of the drug
145.

Which one of the following will be an example of organic diluents?

A. Starch
B. Dicalcium phosphate
C. Tetracycline
D. Tween 80
Answer» A. Starch
146.

What is the function of a granulating agent in drug formulation?

A. Promote cohesive compacts
B. Added if the required dosage is inadequate so that necessary bulk can be produced
C. Tablets can disintegrate easily
D. Used as solubilizer
Answer» A. Promote cohesive compacts
147.

What is the full form of PVP and what is its function in drug formation?

A. Polyvinyl propylene, diluent
B. Polyvinyl pyrrolidine, solubilizing agent
C. Polyvinyl propylene, buffering agent
D. Polyvinyl pyrrolidine, Binding agent
Answer» B. Polyvinyl pyrrolidine, solubilizing agent
148.

Which one of the following sentences depicts the function of Disintegrants correctly?

A. These agents help in holding the powders together to form granules
B. These agents overcome the cohesive strength of the tablets and help in dissolution
C. These agents help in the flow of granules and reduce friction between particles
D. Added when the required dosage is inadequate
Answer» B. These agents overcome the cohesive strength of the tablets and help in dissolution
149.

A large amount of binders tends to increase the hardness of tablets.

A. True
B. False
C. none
D. all
Answer» A. True
150.

An example of lubricants will be __________

A. PVP
B. Carbowaxes
C. CMC
D. Tetracycline
Answer» B. Carbowaxes

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