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Matt Allen

on 17 December 2013

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Transcript of Hypersaline

grueso eje largo

Brief Introduction
To cope with HyperSaline conditions:
The plant contains a very high solute concentration in is cytoplasm, this creates an isoosmotic ballance between the cell and its surrounding environment.

It achieves this by loading its large cytoplasm with solutes via active transport. This creates a low water potential and water will move to this area by osmosis.
To cope with Anoxic Conditions:

The plant has a very large cytoplasm this allows it to respire anaerobically.

the organism itself isn't very metabollically active so it doesn't need large amounts of oxygen to function.

it also has many chloroplasts so that maximum photosynthesis can take place, as oxygen is a by-product. this oxygen is then

Extreme cold
The Phospholipid Bi-layer is highly saturated and contains large amounts of cholesterol which weakens attractions between adjacent Phospholipids and increases fluidity
The epidermal cells also contain anti-freeze proteins, thses bind to small ice crystals, stopping them from increasing in size and Re-Crystalising.

The plant has a large numbers of carrier proteins in its plasma membrane. This allows active transport of solutes into the plant, which will then be loaded into the cytoplasm.
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our organsim is a plant
it has various adaptations
that allow it to survive in harsh conditions.
these include:
This oxygen is then prevented from diffusing out by; hair like protrusions on the outer Epidermis which trap a layer of air with becomes saturated with oxygen. This reduces the oxygen concentration gradient and stops the diffusion of oxygen.
The plant has small rolled leaves which a thick epidermis and waxy cuticle, which prevent efficient gaseous exchange meaning that oxygen isn't lost from the leaf.
They also have sunken stomata which are closed during the day and only open at night. Both of these are examples of Xerophytic adaptations and prevent unnecessary gass exchange.
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