urea creation, filtration ,importance of water levels

the 3 things that are filtered out

some water, some ions,all urea

urea comes about from ( deamination is)

proteins can`t be stored liver turns them into fats/carbs

this process releases toxic ammonia

liver converts ammonia to urea

the urea is taken to kidney tubeles

and filtered out in filtration proccess

a small amount of urea is also excreted from skin when you

sweat

the water levels have to be kept constant because of osmosis why?

as osmosis works from high to low conc if there’s a higher level in blood than cells water will move out of cells causing them to function less efficiently

what else has to be kept constant for body cells to work

the ion water balance

the body needs some water and ions but not all so what happens

first the kidneys filter and then reabsorb the useful substances

filtration is

substances removed out of blood passing by kidneys