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MCQs

Total Questions : 178 | Page 10 of 18 pages
Question 91. The value of equilibrium constant depends upon
  1.    temperature
  2.    ionic strength
  3.    both a and b
  4.    volume
 Discuss Question
Answer: Option C. -> both a and b
Answer: (c).both a and b
Question 92. On increasing the temperature the shape of enzyme's active site
  1.    remains same
  2.    change
  3.    becomes a regular geometrical shape
  4.    none of above
 Discuss Question
Answer: Option B. -> change
Answer: (b).change
Question 93. Optimal pH for working of enzymes is
  1.    5
  2.    7
  3.    9
  4.    10
 Discuss Question
Answer: Option B. -> 7
Answer: (b).7
Question 94. The effect of competitive inhibitor on enzyme activity is such that it
  1.    decreases enzyme activity
  2.    increases enzyme activity
  3.    doesn't change enzyme activity
  4.    Changes the conformation of enzymes
 Discuss Question
Answer: Option A. -> decreases enzyme activity
Answer: (a).decreases enzyme activity
Question 95. The optimal temperature for enzymes to work in body is
  1.    30°C
  2.    32°C
  3.    35°C
  4.    37°C
 Discuss Question
Answer: Option D. -> 37°C
Answer: (d).37°C
Question 96. Extracellular digestion is not witnessed in
  1.    saprophytic bacteria
  2.    virus
  3.    parasitic bacteria
  4.    fungi
 Discuss Question
Answer: Option B. -> virus
Answer: (b).virus
Question 97. Digestive systems do not exist in
  1.    animals
  2.    plants
  3.    mammals
  4.    insects
 Discuss Question
Answer: Option B. -> plants
Answer: (b).plants
Question 98. To expedite heating potassium chlorate (KClO₃) to get oxygen (O₂) and potassium chloride (KCl), the suitable catalyst maybe
  1.    silver
  2.    chlorine
  3.    manganese oxide
  4.    citric acid
 Discuss Question
Answer: Option C. -> manganese oxide
Answer: (c).manganese oxide
Question 99. Digestion does not involve
  1.    breaking of particles in starch
  2.    simpler substances
  3.    water soluble substances
  4.    substances diffusible through cell membranes
 Discuss Question
Answer: Option A. -> breaking of particles in starch
Answer: (a).breaking of particles in starch
Question 100. When potassium chlorate (KClO₃) is heated, the products include
  1.    potassium chloroform and water
  2.    Potassium chloride and water
  3.    potassium chloride and enzymes
  4.    Potassium carbonate and oxygen
 Discuss Question
Answer: Option B. -> Potassium chloride and water
Answer: (b).Potassium chloride and water

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