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MCQs

Total Questions : 179 | Page 5 of 18 pages
Question 41. Proteins interact with which part of the cell membrane?
  1.    Hydrophobic tail
  2.    Polar head
  3.    Non polar head
  4.    Hydrophilic tail
 Discuss Question
Answer: Option B. -> Polar head
Answer: (b).Polar head
Question 42. The cell membrane is ___________
  1.    Impermeable
  2.    Semipermeable
  3.    Permeable
  4.    Permeable to only gases
 Discuss Question
Answer: Option B. -> Semipermeable
Answer: (b).Semipermeable
Question 43. What helps in the passing of inorganic ions?
  1.    Ion channels
  2.    Voltage gated channels
  3.    Aqueous filled pores
  4.    Diffusion
 Discuss Question
Answer: Option C. -> Aqueous filled pores
Answer: (c).Aqueous filled pores
Question 44. Which part of the membrane is responsible for the relative impermeability of polar molecules in and out of the cell?
  1.    Polar head
  2.    Hydrophobic head
  3.    Hydrophobic core
  4.    Non polar head
 Discuss Question
Answer: Option C. -> Hydrophobic core
Answer: (c).Hydrophobic core
Question 45. Which one will be the easiest approach to enhance the solubility and dissolution of any drug?
  1.    Micronize the drug
  2.    Convert drug into their anhydrous form
  3.    Convert drug into their hydrous form
  4.    Convert drug into their salt form
 Discuss Question
Answer: Option D. -> Convert drug into their salt form
Answer: (d).Convert drug into their salt form
Question 46. What is pH?
  1.    –ve log of H+ concentration
  2.    +ve log of H+ concentration
  3.    Log of H+ concentration
  4.    H+ concentration
 Discuss Question
Answer: Option A. -> –ve log of H+ concentration
Answer: (a).–ve log of H+ concentration
Question 47. According to the pH-partition hypothesis which one of the given options doesn’t govern the absorption?
  1.    The molecular size of the drug
  2.    PH at the absorption site
  3.    Lipid solubility of unionized drugs
  4.    Dissociation constant
 Discuss Question
Answer: Option A. -> The molecular size of the drug
Answer: (a).The molecular size of the drug
Question 48. Which one of these is not an advantage of buffered aspirin tablets?
  1.    Enhanced bioavailability
  2.    Reduced gastric irritation
  3.    Increased stability
  4.    Increased ulcerogenic tendency
 Discuss Question
Answer: Option D. -> Increased ulcerogenic tendency
Answer: (d).Increased ulcerogenic tendency
Question 49. Larger the size of the counterion, greater the solubility.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 50. If the pH of either side of the membrane is different, then the compartment whose pH favours greater ionization will have less amount of drug.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

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