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GCSE Biology Unit 2 (Triple)
Topic 6 - Kidney and Homeostasis
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Kidneys
Organs
which
filter
your
blood.
Excretory System
The
system
including your
kidneys
and
bladder
which help to
remove waste urea
from the
blood.
Urea
This is produced from
excess proteins
and
amino acids
in your
body.
You cannot store urea because it is
toxic.
Excretion
The
removal
of
waste products
by the
kidneys.
Nephron
The
functional unit
of the
kidneys.
Urine
A
mixture
of
urea
,
water
and
salts
that is made in the
kidneys
and stored in the
bladder.
ADH
The
hormone
which
controls
the
amount
of
water
in your
body.
Dialysis
A
method
of cleaning your
blood
by
filtering
out the
excess urea.
This is done by a
machine.
Homeostasis
Maintaining
a
constant internal environment.
