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MCQs

Total Questions : 91 | Page 8 of 10 pages
Question 71. Semipermeable membrane allows
  1.    Certain Molecules or ions
  2.    solute to pass
  3.    nothing to pass
  4.    everything to pass
 Discuss Question
Answer: Option A. -> Certain Molecules or ions
Answer: (a).Certain Molecules or ions
Question 72. According to the fluid mosaic model, the membrane is _____________
  1.    rigid
  2.    discontinuous
  3.    sheet-like
  4.    fluid-like
 Discuss Question
Answer: Option D. -> fluid-like
Answer: (d).fluid-like
Question 73. Fluidity and viscosity are the same.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 74. Which of the following attributes of the membrane is most affected at the transition temperature?
  1.    size
  2.    fluidity
  3.    internal composition
  4.    internal environment
 Discuss Question
Answer: Option B. -> fluidity
Answer: (b).fluidity
Question 75. The ___________ the degree of unsaturation of the fatty acids of the bilayer, the ___________ the temperature before the bilayer gels.
  1.    greater, lower
  2.    greater, more
  3.    lesser, higher
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> greater, lower
Answer: (a).greater, lower
Question 76. Which of the following molecules affects the mobility of fatty acyl chains in the plasma membrane?
  1.    starch
  2.    glycogen
  3.    cholesterol
  4.    carbohydrates
 Discuss Question
Answer: Option C. -> cholesterol
Answer: (c).cholesterol
Question 77. Which type of molecules are used in SPT?
  1.    organic dye
  2.    inorganic dye
  3.    antibodies
  4.    gold particles
 Discuss Question
Answer: Option D. -> gold particles
Answer: (d).gold particles
Question 78. The use of optical tweezers in membrane biology was done to confirm the ________________ nature of membranes.
  1.    self-replicating
  2.    elastic
  3.    inelastic
  4.    photo-responsive
 Discuss Question
Answer: Option B. -> elastic
Answer: (b).elastic
Question 79. The sperm cell is covered by a _____________
  1.    sheath
  2.    cell wall
  3.    continuous membrane
  4.    discontinuous membrane
 Discuss Question
Answer: Option C. -> continuous membrane
Answer: (c).continuous membrane
Question 80. Band 3 and glycophorins are membrane proteins that contain ________________
  1.    carbohydrates
  2.    sterols
  3.    lipids
  4.    nucleic acids
 Discuss Question
Answer: Option A. -> carbohydrates
Answer: (a).carbohydrates

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