Question

explain importance os osmosis in the production of urine in the kidney nephron


thanks :)

Answer 1

you still there?

Answer 2

yes :)

Answer 3

okew doke imma look it up

Answer 4

well i know from biology last year that the urinary system has a filtration system in the loop of henle

Answer 5

where salutary substances leave the loop and reenter the body

Answer 6

so do you do a2???
well, i tried the internet and i couldnt find anything :S

Answer 7

whats a2?

Answer 8

well, this stuff is in as level and if you said last year i assumed you were in a2

it after year 11 then you go into 6form and as+a2=alevels :)

Answer 9

haha i dont think I am from around were you are from. i took AP biology

Answer 10

AP??
i think thats the same thing cause i looked up some answers for it and i saw AP too :p

does it stand for anything?

Answer 11

advanced placement, where are you from?

Answer 12

UK
what about you?

Answer 13

Your kidneys are so important they even have an effect on your blood pressure. The kidneys control plasma volume by controlling how much water a person excretes. The plasma volume has a direct effect on the total blood volume, which has a direct effect on your blood pressure. Salt(NaCl)will cause osmosis to happen; the diffusion of water into the blood

Im from the US

Answer 14

ap classes are college cources taken in highschool to is eligible for college credit

Answer 15

i found you an answer it has to do with the loop of henle

Answer 16

so do you go to uni after or not?
cause here if we go to college thats it
+ here we dont do sciences or maths in colleges

Answer 17

by the way thanks for the answer :)

Answer 18

yeah im going to college this year and majoring in biochem


np! i didnt give you areal answer so h/o

Answer 19

ok so let me make this a lesson

tell me what osmosis is

Answer 20

movement of water usually going in

Answer 21

ok. so do you know what a nephron is?

Answer 22

a functional unit in the kidneys

Answer 23

right. ok so osmosis in the nephron is what I am going to talk about because that is its primary purpose. The nephron is our filtration system- we want to keep the good things in our blood and body systems and the bad things we want to be properly thrown out

Answer 24

ok, question is this going to ivolve water potentials :S

Answer 25

nope

Answer 26

don't worry, I hate those too

Answer 27

ok :p

Answer 28

alright so think of a raft. you are going down the decending tube of the loop of henle, its like a concentration camp for salt

Answer 29

the main purpose is to collect salt and get it out

Answer 30

your going down the decending tube with some salt people. you see some other salt outside the tube and they are realived because they are impermeable of getting in

Answer 31

why are they impermeable to get in???

Answer 32

right now the decending tube does not want anymroe salt. it wants to relase as much water as it can

Answer 33

ok now the rest of the loop does not apply to your question but the rest is just the salt/bad things being shipped away (secretion)

Answer 34

ok so how does osmosis happen in that step?

Answer 35

well it happened through a hormone that allows water channels to open and get the water to be reabsorbed into the body

Answer 36

ADH which is released by the pituitary gland

Answer 37

kidneys job is to create a water salt balance therefore without ADH osmosis would not be possible. Any questions?

Answer 38

you said shipped away meaning it gets rid of the salt by excretion?

Answer 39

right. it gets secreted out of the kidneys into the urethra. But let me clarify that its not only salt, its mostly bad things your body doesnt want

Answer 40

like phosphate

Answer 41

ok and how does this link to osmosis :S

Answer 42

the salt concentration gets higher when water is reabsorbed back into the body

Answer 43

OK THANK YOU!!!!
how are you only on level4???

Answer 44

haha, I just joined

Answer 45

oh, i see :o