Excretion

Question 0

toxic substances

Answer 0

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

excretion is the removal of toxic chemical substances, which are made in the body during metabolism

Question 2

Excretory organs

Answer 2

we have 3 excretory organs
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

Question 6

kidney filters

Answer 6

blood to remove urea

Question 7

ureter

Answer 7

transports urine to bladder

Question 8

urethra

Answer 8

releases urine

Question 9

urea(toxic)

Answer 9

is produced in the liver from excess protein

Question 10

lungs

Answer 10

carbon dioxide and water are waste products of the process of respiration in all of the cells of the bodies

Question 11

excretion (lungs)

Answer 11

the carbon dioxide and some of the water is carried to the lungs by the blood to be excreted

Question 12

skin

Answer 12

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