The air spaces may comprise upto _________ of total volume of leaf surface?
Correct answer: C. 40%
- A. 30%
- B. 20%
- C. 40%
- D. 50%
Explanation
Intercellular air spaces can occupy about 40% of a leaf's total volume, providing pathways for carbon dioxide and oxygen movement between the stomata and photosynthetic cells. Students may choose 30% because they underestimate the extensive air spaces present between mesophyll cells.
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