THE KIDNEY

HideShow resource information
What produces urea?
Excess amino acids that are broken down in the liver.
1 of 9
What is the volume of urine produced affected by?
Heat and exercise, this affects how much you drink and sweat.
2 of 9
Compare the how the concentrations of urine will differ with the amounts of water that are drunk.
With little water drunk, the concentration of urine will be high with a small amount produced whereas with lots of water drunk the urine will be dilute with more of it produced.
3 of 9
Why must water levels be maintained in the blood?
Because if water levels are too low the blood will be thick and difficult to pump (low blood pressure) and the person will become dehydrated whereas if there is too much water in the blood the blood will flow quickly and blood pressure will increase.
4 of 9
What do the kidney's do?
Clean the blood and remove excess water from the blood.
5 of 9
What do the kidneys excrete?
Urea, water and salts.
6 of 9
The kindeys contain millions of tiny...
Tubules
7 of 9
How is the kidney adapted to it's purpose?
It has access to very high blood pressure which ensures that small molecules are separated from the blood and is close to several blood capillaries that helps useful substances be reabsorbed.
8 of 9
What is Ultrafiltration?
When blood is forced into the glomerulus under high pressure. Most of the water is forced out into the Bowman's capsule. (it is shaped as a horseshoe to allow the glomerulus to sit inside and for the blood pressure to be maintained.
9 of 9

Other cards in this set

Card 2

Front

What is the volume of urine produced affected by?

Back

Heat and exercise, this affects how much you drink and sweat.

Card 3

Front

Compare the how the concentrations of urine will differ with the amounts of water that are drunk.

Back

Preview of the front of card 3

Card 4

Front

Why must water levels be maintained in the blood?

Back

Preview of the front of card 4

Card 5

Front

What do the kidney's do?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Cells, tissues and organs resources »