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Homeostasis: A quick recap

Homeostasis is processes that help your body to maintain a constant internal environment.

There are 6 main things that need to be kept at a constant level in the body. These are...

CO - A waste product of respiration.
Urea ­ Waste formed in the liver…

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You will also have to be able to label a cross- section of the kidney, and give the position of
the nephrons.




The kidneys act as "filters" in the body, removing urea, ions and excess water from the
blood. They do this via a process called Ultrafiltration.

In the kidney…

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KIDNEY PROBLEMS AND TREATMENT

Kidney problems can be caused by a number of things, such as disease, diabetes or infection.
There are two main methods of treatment. These are dialysis and transplantation. You need
to know some of the advantages and disadvantages of each one.

Transplantation involves replacing the kidney,…

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There are many disadvantages of relying on dialysis.

The patient has to follow a specific diet, in order to avoid complications.
They are expensive.
The patient must be connected to the machine for several hours a week. This means
they can't live a normal life- working hours etc are affected.…

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