Hey! Sign in to get help with your study questionsNew here? Join for free to post

How does a Kidney produce urine? (I hate the kidneys)

Announcements Posted on
Would YOU be put off a uni with a high crime rate? First 50 to have their say get a £5 Amazon voucher! 27-10-2016
    • Thread Starter

    I'm current revising for my GCSEs and have a question about the Kidneys it reads: Describe how a healthy kidney produces urine. I know everything but I can never remember the kidneys. Please help me.

    The kidneys are part of the urinary system, together with the ureter, urethra and bladder. Humans have two kidneys. They are bean-shaped organs - approximately 11.5 cm long – which are found just below our ribcage, one on either side of our spine.Location of kidneys in abdominal cavitylocation of kidneys in abdominal cavityThe renal arteries take blood with waste products to the kidneys to be filtered. Renal veins then return the filtered blood to be circulated around the body.Blood vessels take the blood though the kidneys where the waste products are removed into convoluted tubules. These tubules join together to form the ureter, which transports urine to the bladder where it is stored. Urine is then passed from the bladder to the urethra to be released.

    this is what i have to learn for my wjec board, the kidney is a filtering system where urea, salt, glucose, protein, water pass through but only urea, some salt, some water should pass through if the kidney is healthy. There is the filter in the kidney called the nephron. it filters by ultrafiltration (filter under pressure). there's the bowman's capsule and all sort of loops, the blood enters the renal artery to get into the kidney and this goes to the nephron and the filtered solution (urine) pass out to the ureter which leads to the bladder and then out of the urethra.
    not sure if your board require the same or different kind of details.

    (Original post by Anonamoose)
    I'm current revising for my GCSEs and have a question about the Kidneys it reads: Describe how a healthy kidney produces urine. I know everything but I can never remember the kidneys. Please help me.
    I do AQA and i'm a current year 11 student.

    The Kidneys:
    1) Filter the blood (Urea, glucose, water, minerals and ions)

    2) Reabsorbs ALL the glucose originally filtered out the blood.
    3) Reabsorbs the water required to maintain constant water level.
    4) Reabsorbs the minerals and ions required to maintain a constant level.

    (This is all called selective reabsorption)

    5) All excess minerals and ions (molecules which have not been selectively reabsorbed) as well as urea forms urine which passes down into the bladder.
Write a reply…


Submit reply


Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. Oops, you need to agree to our Ts&Cs to register
  2. Slide to join now Processing…

Updated: April 6, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

I want...
Useful resources

Study tools


Essay expert

Learn to write like a pro with our ultimate essay guide.

Thinking about uni already?

Thinking about uni already?

See where you can apply with our uni match tool

Student chat

Ask a question

Chat to other GCSE students and get your study questions answered.


Make study resources

Create all the resources you need to get the grades.


Create your own Study Plan

Organise all your homework and exams so you never miss another deadline.

Resources by subject

From flashcards to mind maps; there's everything you need for all of your GCSE subjects.


Find past papers

100s of GCSE past papers for all your subjects at your fingertips.

Help out other students

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.