Wednesday, 13 February 2013

2.30 understand that bile is produced by the liver and stored in the gall bladder, and understand the role of bile in neutralising stomach acid and emulsifying lipids

Bile is produce by the liver and stored in the gall bladder.
Enzymes in the small intestine work best in alkaline conditions but the food is acidic after being in the stomach. Bile is alkaline and so when it is released into the small intestine it enables the enzymes to work.
Bile also emulsifies fat; this gives it a larger surface area, which means that it is easier for lipases to work.

digestive enzymes are produced in the pancreas, bile stored in the gall bladder, bile production in liver


  1. Thank you for this awesome guide, it makes revising so fast and easy :)

  2. Dear Hannah,

    God evening.

    I am making a professional presentation in which I would like to use the above image. Would like to know the source and owner of above image so that I can obtain permission for usage. Your help is ppreciated.

    ramdas WARRIER

    1. You should pay more attention - underneath the picture it says "BBC".

    2. Yeah but to be fair it doesn't mean much.. BBC have tons of diagrams called " BBC"


  3. is it alkaline or neutral conditions?
    because when an acid an d alkali combine together the neutralise each other.

  4. The Biology Syllabus has changed.... New Syllabus Blog: