Biology 5090 · O Level · Leaf structure

Leaf structure — practice question

What changes take place in the air spaces of a green leaf during a sunny day?

  • Acarbon dioxide concentration decreases; oxygen concentration decreases
  • Bcarbon dioxide concentration decreases; oxygen concentration increases
  • Ccarbon dioxide concentration increases; oxygen concentration decreases
  • Dcarbon dioxide concentration increases; oxygen concentration increases

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