Leaf Anatomy · Botany

Which feature helps explain why spongy mesophyll is important for photosynthesis even though it has fewer chloroplasts than palisade tissue?

  1. Its air spaces allow gases to move efficiently within the leaf
  2. It produces root hairs that absorb water from soil
  3. It forms the waxy cuticle that covers the leaf surface
  4. It prevents carbon dioxide from ever reaching the mesophyll cells
Show answer and explanation

Correct answer: Its air spaces allow gases to move efficiently within the leaf

Spongy mesophyll contains air spaces that allow carbon dioxide to diffuse to photosynthetic cells. It also allows oxygen and water vapor to move toward stomata.

Difficulty: Medium Question 14 of 19

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