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Adaptations Of A Leaf

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Science


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Adaptations Of A Leaf


Leaves are made of different components. The leaf has a mesophyll layer

where most of the photosynthesis occurs. It has xylem and phloem which

help to transport the substances around the plant. It also contains epidermal

tissue which covers the whole leaf.

 

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Taking these graphs into account, you can artificially control the environments

for plants. This can be done in a number of ways:

A greenhouse can be used to trap the suns heat in order to make sure that

the temperature is no longer the limiting factor.

To make sure light is not the limiting factor, artificial lights can used to ensure

photosynthesis occurs.

Carbon dioxide can also be an issue, however this can be solved using a

paraffin heater which provides carbon dioxide

 

 

Light


A leaf has many parts. The top of the leaf is known as the waxy cuticle, which

protects the leaf and prevents water loss.

 

The upper part of the leaf is where the sunlight hits. Therefore the upper part

of the leaf has many palisade cells (for photosynthesis). These palisade cells

have many chloroplasts and look like the plant cell drawn above.

 

 

Carbon Dioxide


Carbon dioxide enters the plant through small pores in the leaves called

stomata. Guard cells control these pores and help maintain the conditions

within the plant and help it adapt to the conditions outside for example

weather.

 

The lower part of the leaf cell is called the spongy layer. It has many gaps,

which allows the carbon dioxide to move around and reach other cells.

 

 

Water


Water is absorbed from the ground. The roots have root hair cells, which are

adapted to getting the maximum amount of water from the ground. There

are long and thin , which allows them to reach the maximum area, also they

have very thin walls thus reducing the diffusion distance for water.


 

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