Class 9 Biology: Enzymes MCQs Quiz Worksheet PDF Download

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MCQ on Class 9 Biology Enzymes Quiz PDF Download

MCQ: Kind of molecules at which enzymes act are classified as

  1. solutes
  2. concentrates
  3. nitrates
  4. substrates


MCQ: Catabolism is related to

  1. release of energy
  2. absorption of energy
  3. release of water
  4. absorption of water


MCQ: Energy required in chemical reactions is called

  1. solvent energy
  2. activation energy
  3. enzymatic energy
  4. catalysis energy


MCQ: Categorization of enzymes is based on

  1. level of carbon dioxide
  2. their working site
  3. level of oxygen
  4. level of nitrogen


MCQ: Biochemical reactions are also considered as

  1. gaseous release
  2. chromosomal transfer
  3. energy transfer
  4. material transfer