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The study of the form and internal structures of plants.

3 votes
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Why is pith of Cucurbits hollow when mature?

Pith autolysis is a phenomenon due to which in some dicotyledonous plants like cucurbits, the pith gets hollowed. Background: We all know that plants get their Carbon from atmosphere in the form of C …
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12 votes
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What causes leaves to be hydrophobic?

This is due to presence of a hydrophobic chemical called as cutin present at the the aerial surfaces of plants. Cutin is one of two waxy polymers that are the main components of the plant cuticle, …
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9 votes

What are these bumps on tomato stem?

Those bumps are aerial surface hairs, a type of trichome. They are epidermal outgrowths. Therefore it's vines are of pubescent type. In addition to facilitating better exchange of gases, it also faci …
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