What is Respiration MCQs Quiz and Answers Tests pdf Download

Practice what is respiration MCQs in science quiz for test prep. Plant photosynthesis and respiration quiz questions has multiple choice questions (MCQ) with what is respiration test, answers as the waste products of process of respiration are, answer key with choices as oxygen + co2, carbon dioxide & water, food + oxygen and none of them for competitive exam preparation worksheets. Free science revision notes to learn what is respiration quiz with MCQs to find questions answers based online tests.

MCQs on What is Respiration Quiz pdf Download

MCQ. Waste products of process of respiration are

  1. oxygen + CO2
  2. carbon dioxide & water
  3. food + oxygen
  4. none of them


MCQ. Largest percentage composition in air is of

  1. argon
  2. oxygen
  3. nitrogen
  4. carbon dioxide


MCQ. Balance of two gases is very important for all communities, these two gases are

  1. nitrogen & oxygen
  2. carbon dioxide and oxygen
  3. argon & nitrogen
  4. none of them


MCQ. Act of breaking of food substances in order to release energy is known as

  1. process
  2. transpiration
  3. respiration
  4. photosynthesis


MCQ. Photosynthesis reduces concentration of

  1. carbon dioxide
  2. oxygen
  3. energy
  4. neon