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JAMB Biology 1979 Question 23

Question 23

Respiration

Alkaline pyrogallol was used in an experiment. That experiment must have been connected with

  1. A.excretion
  2. B.germination
  3. C.transpiration
  4. D.digestion
  5. E.photosynthesis.
Show the answer and explanation

Answer: B (germination)

Explanation

Alkaline pyrogallol absorbs oxygen, so it is used to show that germinating seeds need oxygen.