Excretion

Question 1

We have 3 excretory organs

Answer 1

Kidney
Lungs
Skin

Question 2

Kidneys

Answer 2

Filter the urea and salts from our blood. This process is called filtration

Question 3

Urea

Answer 3

Which is toxic, is produced in the liver from excess protein

Question 4

Excretion

Answer 4

Is the removal of toxic substances, which are made in the body during metabolism

Question 5

Urea

Answer 5

Is toxic, which is produced in the liver from excess protein

Question 6

Lungs

Answer 6

Carbon dioxide and water are waste products of the process of respiration in all the cells of the body

Question 7

Test for carbon dioxide

Answer 7

Limewater

Question 8

Test for water

Answer 8

Cobalt chloride paper

Question 9

Skin

Answer 9

Human skin have sweat glands which lead to pores at the surface