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MCQs

Total Questions : 91 | Page 7 of 10 pages
Question 61. During salt stress condition in Arabidopsis, which of the following antiport proteins are used?
  1.    AvPI and AtNHX
  2.    AvPI and AtDBF
  3.    AvPI and AvPII
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> AvPI and AtNHX
Answer: (a).AvPI and AtNHX
Question 62. Proteins that completely span the lipid bilayer are called as
  1.    extrinsic proteins
  2.    intrinsic proteins
  3.    fibrous proteins
  4.    Peripheral proteins
 Discuss Question
Answer: Option B. -> intrinsic proteins
Answer: (b).intrinsic proteins
Question 63. If the temperature is increased than kinetic energy inside membrane molecules will
  1.    decrease
  2.    increase
  3.    remains same
  4.    becomes zero
 Discuss Question
Answer: Option B. -> increase
Answer: (b).increase
Question 64. Waxes are the compounds which are extremely
  1.    hydrophilic
  2.    hydrophobic
  3.    sticky ends
  4.    Blunt ends
 Discuss Question
Answer: Option B. -> hydrophobic
Answer: (b).hydrophobic
Question 65. Proteins that use energy to move the substances across membrane are called as
  1.    carrier proteins
  2.    extrinsic proteins
  3.    intrinsic proteins
  4.    fibrous proteins
 Discuss Question
Answer: Option A. -> carrier proteins
Answer: (a).carrier proteins
Question 66. The transport of water molecules from a solution to the cell cytoplasm occurs in _________
  1.    Hypertonic solution
  2.    Hypotonic solution
  3.    Isotonic solution
  4.    All of the mentioned
 Discuss Question
Answer: Option B. -> Hypotonic solution
Answer: (b).Hypotonic solution
Question 67. Which of the following channels depend on forces such as stretch tension applied on the membrane?
  1.    Voltage-gated channels
  2.    Mechano-gated channels
  3.    Ligand-gated channels
  4.    Tension-gated channels
 Discuss Question
Answer: Option B. -> Mechano-gated channels
Answer: (b).Mechano-gated channels
Question 68. How many H⁺ ions are transported by the vacuole H+-ATPase pump and the vacuole H+-phosphatase pump per hydrolysis of ATP and pyrophosphate respectively?
  1.    1, 1
  2.    1, 2
  3.    2, 1
  4.    2, 2
 Discuss Question
Answer: Option C. -> 2, 1
Answer: (c).2, 1
Question 69. Plasmolysis occurs in __________
  1.    Hypertonic solution
  2.    Hypotonic solution
  3.    Both hypotonic and hypertonic solution
  4.    Isotonic solution
 Discuss Question
Answer: Option A. -> Hypertonic solution
Answer: (a).Hypertonic solution
Question 70. The ion most abundant in cells and most permeable to cell membrane is ____________
  1.    K⁺
  2.    Ca²⁺
  3.    Na⁺
  4.    H⁺
 Discuss Question
Answer: Option A. -> K⁺
Answer: (a).K⁺

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