The structure and types of leaves |
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The lines on a leaf, such as the ones to the left, are called leaf veins. |
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The leaf vein is a way for the leaf to get water and nourishment. In addition,
The leaf vein is also used to support a thin, wide leaf. |
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This picture is the leaf of a plant called camellia. The leaf vein of the
camellia is called a net vein. |
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This picture is the leaf of a plant called bamboo grass. The leaf veins
of the bamboo grass are parallel . |
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This picture is a cell in the leaves. A cell is like a small room which
is in a section of the leaf. |
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The small green grains in a sectional cell of the leaf are called
chloroplast. |
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Two face-to-face cells in the shape of two crescents in the surface
of the leaf are called guard cells.We call the gap a pore between two cells. |
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The phenomenon knoen as evaporation happens when water leaves the plant
through apore and becomes part of theair. |
Photosynthesis |
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The plant catches the sunlight with a green leaf and works to make nourishment
such as starch with photosynthesis. |
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Plants take in water from their roots. The water goes along the trachea
and goes into the leaves. |
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Plants take in carbon dioxide from the air. |
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Photosynthesis is performed in the chloroplast in the leaf calls. |
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Starch and oxygen are made from carbon dioxide and water when they are
photosynthesized. |
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The oxygen which was made when it photosynthesized goes out through
the pores. The starch goes along the sieve tube, and it moves through the
whole body of the plant. |
Summary |
Plants increas atmospheric oxygen with photosynthesis. Plants are really
indispensable things for living creatures. |
Basic terms |
cell・・・The small room which all creatures have. |
Guard cells・・・It is faced each other around a half moon-shaped cell, a pore. |
pore・・・Photosynthesis, breathing, transpiration are performed mainly. |
camellia・・・The camellia department camellia genus. |
chloroplast・・・green cell, a photosynthesizing work. |
leaf vein・・・make progress with a line in the leaf, nourishment, and there is a work to support a big leaf. |
Photosynthesis・・・Take in atmospheric carbon dioxide; starch |
Starch・・・The nutrient which is included in potatoes mainly. |
trachea・・・pipe to carry water to mainly |
Transpiration・・・The phenomenon that a plant discharges water. |
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