Excretion Flashcards
1
Q
3 excretory organs
A
Kidneys, lungs, skin
2
Q
Kidneys
A
Filter urea and salt from the blood, this process is called filtration
3
Q
Urea
A
It is toxic, is produced in the lover from excess protein
4
Q
Excretion
A
The removal of toxic chemical substances, which and made in the body during metabolism
5
Q
Lungs
A
Carbon dioxide and water are waste products of the process of respiration in all the cells of the body
6
Q
Test for Carbon dioxide
A
Lime water
7
Q
Test for water
A
Chloride paper
8
Q
Skin
A
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
