The upper and lower parts of the leaf are different in terms of their internal structure. The differences arise to facilitate better photosynthesis and transcription. The palisade parenchyma is closer to the upper surface whereas the spongy parenchyma is closer to the lower epidermis of the leaf.

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Chapter 36, Problem 7TY

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Introduction: The upper and lower parts of the leaf are different in terms of their internal structure. The differences arise to facilitate better photosynthesis and transcription. The palisade parenchyma is closer to the upper surface whereas the spongy parenchyma is closer to the lower epidermis of the leaf.

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