Biology for IGCSE & O level - Plant Nutrition (Section 6 - No. 7)
What is the role of the spongy mesophyll in the process of gas exchange?
To absorb sunlight
To have large air spaces
To contain a lot of chloroplasts
To allow gases to diffuse
Explanation
The spongy mesophyll contains large air spaces for gas exchange and is not directly involved in absorption of light. Chloroplasts are mainly in the palisade layer.
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