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Excretion: O Level Biology Multiple Choice Questions PDF Download eBook

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MCQs on Excretion O Level Biology PDF Download eBook

MCQ: Loss of water during sweating stimulates

  1. production of ADH
  2. lesser reabsorption of water
  3. lower osmotic pressure in plasma
  4. release of adrenaline


MCQ: Amount of ADH (Antidiuretic Hormone) secreted determines amount of

  1. nutrients reabsorbed
  2. water reabsorbed
  3. water excreted
  4. food injested


MCQ: Large intake of water

  1. decreases osmotic pressure in plasma
  2. stimulates active production of ADH
  3. produces lesser urine
  4. causes excess selective reabsorption


MCQ: In excretion, ultrafiltration retains

  1. blood plasma
  2. small molecules
  3. water
  4. solid molecules


MCQ: Removal of metabolic waste is not the only method to get rid of them. Other means include

  1. depositing them into dead cells
  2. converted into harmless insoluble substances
  3. converted to soluble harmless substances
  4. converted into soluble harmful substances