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WAEC Biology 2008 Question 27

Question 27

Photosynthesis and Plant Nutrition

Filaments of Spirogyra placed in a beaker of tap water in a dark cupboard died because

  1. A.the filaments could not photosynthesize
  2. B.conjugation could not take place
  3. C.the temperature was too high
  4. D.the plant was overflooded.
Show the answer and explanation

Answer: A (the filaments could not photosynthesize)

Explanation

Without light Spirogyra cannot photosynthesise, so it runs out of food and dies.