Pollution: Smog as Cause MCQ App | IGCSE O Level Biology MCQ e-Book PDF
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IGCSE O Level Biology MCQs – Mock Test 74

Pollution: Smog as Cause MCQs with Answers PDF Download – Test 74

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Pollution: Smog as Cause MCQ – Mock Test 74 PDF Download

MCQ 366: Chronic bronchitis and emphysema are more vulnerable to:

  1. acid rains
  2. water pollutants
  3. smog
  4. nitrogen oxides

MCQ 367: Through enzyme pepsin, proteins can be changed to:

  1. polypeptides
  2. cellulose
  3. amino acids
  4. fatty acids

MCQ 368: Plants pollinated through insects have:

  1. small pollens
  2. light pollens
  3. short stamens
  4. nectar guides

MCQ 369: In cardiac system oxygenated blood:

  1. leaves from left side of the heart
  2. leaves from the right side of the heart
  3. does not leave the lungs
  4. enters the lungs from the heart

MCQ 370: During tissue respiration, an increased oxidation of glucose occurs due to production of:

  1. thiamine
  2. insulin
  3. glucagon
  4. adrenaline

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