Excretion

Question 0

Toxic substances?

Answer 0

Toxic substances are poisonous and can harm the cells of the body if not removed.

Question 1

Excretion?

Answer 1

Is one of the characteristics of all living things. The removal of toxic chemical substances, which are made in the body during metabolism.

Question 2

3 excretory organs

Answer 2

Kidneys, lungs, skin

Question 3

Kidneys?

Answer 3

The kidneys filter( remove urea and salts) as they clean our blood
This process is called filtration

Question 4

What do the kidneys do?

Answer 4

Filter the blood.

Question 5

Renal artery

Answer 5

Renal artery carries blood to the kidney

Question 6

Renal vein?

Answer 6

Carries blood from the kidney

Question 7

Ureter

Answer 7

transports urine to the bladder

Question 8

Bladder

Answer 8

Stores urine

Question 9

Urethra

Answer 9

Releases urine

Question 10

Urea ?

Answer 10

Is toxic , it is produced in the liver from excess protein.

Question 11

Lungs?

Answer 11

Carbon dioxide and water are waste products of the process of respiration in all cells on the body.
•carbon dioxide
•water
•energy
They are carried by lungs by the blood to be excreated.

Question 12

Test for carbon dioxide

Answer 12

Limewater

Question 13

Test for water

Answer 13

Cobalt chloride paper

Question 14

Skin?

Answer 14

Human skin has sweat glands which lead to pores at the surface- water,salt and a tiny amount of urea is excreted as sweat through these pores.