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The waxy coating on a plant leaf is primarily composed of lipids, specifically cutin and waxes. These macromolecules form a protective barrier that helps reduce water loss and provides some defense against pathogens. The hydrophobic nature of these lipids also aids in preventing the penetration of water and contaminants. Overall, the waxy cuticle is essential for the plant's adaptation to its environment.

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AnswerBot

1mo ago

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