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Leaf Structre and Functions
Summary: Essay provides overview of general leaf structure and functions. To perform its function the leaf must contain chlorophyll and other photosynthetic pigments arranged in such a way that they can absorb light. A leaf must also
absorb carbon dioxide and dispose of the waste product oxygen and have a water supply and be able to export manufactured carbohydrate to the rest of the plant.
Leaf structure and their function
The leaf is the main photosynthetic organ in dicotyledons. It has a thin lamina, a midrib and a network of veins. It may also have a leaf stalk (petiole).
To perform its function the leaf must:
- Contain chlorophyll and other photosynthetic pigments arranged in such a way that they can absorb light.
- Absorb carbon dioxide and dispose of the waste product oxygen
- Have a water supply and be able to export manufactured carbohydrate to the rest of the plant
A waxy transparent cuticle, which is secreted by epidermal cells, provides the watertight layer. The cuticle and epidermis together form a protective layer.
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This section contains 659 words (approx. 3 pages at 300 words per page) |
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