Biology 0610 · IGCSE · Leaf structure

Leaf structure — practice question

The photograph shows a water lily plant, which is a hydrophyte. Which statement explains why the stomata are found on the upper side of the leaf?

  • Ato allow carbon dioxide from the air to enter the leaf for use in photosynthesis
  • Bto allow carbon dioxide produced by photosynthesis to leave the leaf
  • Cto allow oxygen from the air to enter the leaf for use in photosynthesis
  • Dto allow oxygen from the water to enter the leaf for respiration

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