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Urine

Key Stage 3

Meaning

Urine is a solution made from urea and water which is taken from the blood by the kidneys in the process of excretion.

About Urine

Urine is stored in the bladder before it is released from the body.

Key Stage 4

Meaning

Urine is a solution made from urea and water which is taken from the blood by the kidneys in the process of excretion.

About Urine

Urine is produced in the kidneys which filter the blood to remove water, urea and some other chemicals.
Urine passes from the kidneys to the bladder via the ureters. The urine is stored in the bladder before it is released from the body via the urethra.
The colour of urine can give information about whether an animal is dehydrated. If the urine is dark in colour the animal needs more water.

References

AQA

Urine, page 179, GCSE Biology, CGP, AQA
Urine, page 75, GCSE Biology; The Revision Guide, CGP, AQA
Urine, pages 194-5, 200-1, 205, GCSE Biology; Student Book, Collins, AQA
Urine, pages 52, 184-187, GCSE Biology; Third Edition, Oxford University Press, AQA

Edexcel

Urine, pages 246, 248, GCSE Biology, CGP, Edexcel

OCR

Urine, pages 54, 55, Gateway GCSE Biology; The Revision Guide, CGP, OCR