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 organ

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.
If your kidneys are damaged you may need to go on a dialysis machine.

Question 4

Renal artery

Answer 4

Carries blood to kidney

Question 5

Renal vein

Answer 5

Carries blood from kidney

Question 6

Kidney filters

Answer 6

Blood to remove urea

Question 7

Ureter

Answer 7

Transports urine to bladder

Question 8

Blader

Answer 8

Stores urine

Question 9

Urethra

Answer 9

Releases urine

Question 10

Urea

Answer 10

Toxic its produced in the liver from excess protein

Question 11

Lungs

Answer 11

The Carbon dioxide and water are waste products of the process of respiration in all the cells of the body.
They are carried to the lungs by the blood to be excreted.

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.