Biological Molecules MCQs Quiz Online PDF Download

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IGCSE biology practice test MCQ on protein molecules are with options water soluble, very large to pass through living membranes, need to by hydrolyzed to get digested and produce amino acids as final product problem solving skills for viva, competitive exam prep, interview questions with answer key. Free study guide is for online learning biological molecules quiz with MCQs to practice test questions with answers.

MCQs on Biological Molecules Quiz PDF Download

MCQ. Protein molecules are

  1. water soluble
  2. very large to pass through living membranes
  3. need to by hydrolyzed to get digested
  4. produce amino acids as the final product


MCQ. Breaking down of large molecules like proteins, starch and fats is called as

  1. mechanical digestion
  2. chemical digestion
  3. physical digestion
  4. all of these


MCQ. In hydrolysis, larger molecules are broken down into smaller molecules by addition of

  1. amino acids
  2. water
  3. grape sugar
  4. sucrose


MCQ. Number of glucose (C6H12O6) units in a starch (C6H10O5)n molecule may be up to

  1. 100
  2. 200
  3. 220
  4. 300


MCQ. Most complicated food molecules are of

  1. proteins
  2. fats
  3. carbohydrates
  4. glucose