excretory system

Question 1

the function

Answer 1

excretion is the process of removing waste from your body

Question 2

the main organs of excretion

Answer 2

kidneys, lungs, liver, skin

Question 3

what are the kidneys and what do they do

Answer 3

kidneys are bean shaped organs that filters blood. There are two main outputs: clean blood and urine

Question 4

what is a nephron

Answer 4

tiny structures that filters blood located in the kidneys

Question 5

what is waste

Answer 5

anything that needs to be removed from the body (urine)

Question 6

what’s metabolism

Answer 6

a chemical reaction that occurs in the body that converts food into energy by breaking it down.

Question 7

what’s urine and what happens if it isn’t removed

Answer 7

a waste made up of water, salt and urea and bits of blood breakdown. If it isn’t excreted it could damage our body

Question 8

ammonia and urea

and how is ammonia converted to urea

Answer 8

ammonia = toxic
urea = safe
When protein is broken down it is broken down into these molecules called amino acids, the liver than breaks these down into different substances one of them being ammonia. The liver than uses energy to convert it into urea.

Question 9

organs and their order

Answer 9

1. aorta
2. kidney: filters blood, produces urine
3. renee veins
4. ureter: tube that carries urine to the bladder
5. bladder: stores urine
6. urethra carries urine out of the body