B3 3.2: The Human Kidney

All information was taken directly from the AQA revision guide with only the key points from B3 3.2

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How many kidneys does the body have?
2
1 of 6
What does the kidney do?
It removes excess water, salts and urea from the body.
2 of 6
How does the kidney work?
Filtering all small molecules out of the blood then selectively reabsorbing useful molecules.
3 of 6
How does a healthy kidney produce urine?
Filters blood - reabsorbes all sugar - reabsorbes dissolved ions - reabsorbs as much water as body needs - releases urea.
4 of 6
What is in Urea?
Excess ions and water.
5 of 6
Where is Urea Tempoarly stored?
In the bladder before being excreted.
6 of 6

Other cards in this set

Card 2

Front

What does the kidney do?

Back

It removes excess water, salts and urea from the body.

Card 3

Front

How does the kidney work?

Back

Preview of the front of card 3

Card 4

Front

How does a healthy kidney produce urine?

Back

Preview of the front of card 4

Card 5

Front

What is in Urea?

Back

Preview of the front of card 5
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