Leaves

Green Leaves.jpg

Leaves functions

- Manufacture food through photosynthesis

This is possible due to the green pigment in them called CHLOROPLAST,
Leaves are the chief food producing organ in MOST not all plants, and because they create food via photosynthesis
they are typically arranged in convienient ways to allow maximum absorbtion of sunlight.

- Gas (air) exchange, Respiration

Leaves use our bi-product carbon dioxide for photo synthesis! This co dependant relationship is required for survival for not only them but for everything
here on earth that requires oxygen to live.
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- Protect vegetative and floral buds

Some plants are unique in terms of how they've adapted to protecting themselves by growing their own defenses.
example) the artichoke has grown a protective wall over the entire bud to allow it to safely grow!

- Water transport, transpiration

Plants lose a relatively large amount of water through transpiration through their STOMATA, in fact its estimated that the loss of water via stomata through the process of transpiration exceeds over 90 percent of the water absorbed by the roots!

- To store food during germination

Leave Structure

- Leaves are organs to the plant, they come in many differant shape, sizes and arangements all varying on the differant conditions each plant must survive in.
fall-leaves.jpg3 star leaf.jpgdew leaf.jpg
- A cool fact that you may not know... The needles on pine tree's are actually leaves! and perform the very same actions.
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- An important part of leaves is the role of STOMATA or STOMA. Stoma consist of a pore thats surrounded by 2 sausage
shaped epidermal guard cells. These pores open and close as they regulate the flow/amount of gases and water to and from the leaves.
They are typically found on the underside of leaves but in some cases they are found on other organs of the plant like the stem or fruit.


Legend of definitions
Chloroplast
A plastid that contains chlorophyll and in which photosynthesis takes place
Stomata
Stoma consist of a pore thats surrounded by 2 sausage shaped epidermal guard cells. These pores open and close as they regulate the flow/amount of gases and water to and from the leaves.
Photosynthesis
The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.