An ==Key Stage 3=====Meaning===[[File:Liver.png|right|300px|thumb|A computer generated image showing the liver.]]The [[liver]] is an [[organ]] used to [[filter]] the [[blood]] to remove some [[Toxic Chemicals|toxins]] and to add other [[Chemical|chemicals]] to the [[blood]]. ===About The Human Liver===: The [[liver]] is the largest internal [[organ]].: The [[liver]] takes [[toxic chemicals]] [[chemical]]s out of the [[blood]]. ==Key Stage 4=====Meaning===The [[liver]] is an [[organ]] used to [[Detoxification|detoxify]] [[blood]] and to produce [[bile]] to aid the [[digestion]] of [[lipid]]s. ===About The Human Liver===: When [[muscle]]s do not get enough [[Oxygen]] during exercise they break [waste[glucose]] down into [[Lactic Acid|lactic acid]] for [[energy]]. The [[liver]] removes this [[toxic]] [[Lactic Acid|lactic acid]] from the [[blood]] by converting it back into [[glucose]].: The [[liver]] clears dead [[Red Blood Cell|red blood cells]] and breaks them down into [[bile]] which is stored in the [[Gall Bladder|gall bladder]]. The [[bile]] is passed down the [[Bile Duct|bile duct]] into the [[Small Intestine]] where it is used to [[Emulsification|emulsify]] [[lipid]]s which increases their surface area making them easier to add other [[ChemicalDigestion|chemicalschemically digest]].: When food is [[Absorb (Biology)|absorbed]] into the [[blood]] it goes through the [[Hepatic Portal Vein|hepatic portal vein]] straight to the [[liver]] which removes [[toxin]]s from the [[blood]]before it is sent to the rest of the body.: The [[liver]] is a [[Target Organ|target organ]] for the [[hormone]] [[glucagon]]. The [[glucagon]] instructs the [[liver]] to convert [[glucose]] into [[glycogen]].: The [[liver]] is a [[Target Organ|target organ]] for the [[hormone]] [[insulin]]. The [[insulin]] instructs the [[liver]] to convert [[glycogen]] back into [[glucose]]. ===Extra Information==={{#ev:youtube|https://www.youtube.com/watch?v=wbh3SjzydnQ}} ===References=======AQA==== :[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Liver, pages 12, 14, GCSE Combined Science Trilogy 2, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Liver, pages 31, 74, GCSE Biology; The Revision Guide, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/0198359373/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359373&linkCode=as2&tag=nrjc-21&linkId=952a73bbb09d222ecc4b50d200679849 ''Liver, pages 38, 49, 120, 140-141, 162-163, GCSE Biology; Third Edition, Oxford University Press, AQA '']:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Liver, pages 45, 47, GCSE Combined Science Trilogy 1, Hodder, AQA ''] ====OCR====:[https://www.amazon.co.uk/gp/product/0198359810/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359810&linkCode=as2&tag=nrjc-21&linkId=d768d99f1a06f7c12fab40e5aef85a55 ''Liver, pages 118, 237, Gateway GCSE Biology, Oxford, OCR '']