Excretion- Liver
Made using OCR Biology textbook. Pages 36- 41. Hocking, Kennedy, Sochaki, Winterbottom.
- Created by: Former Member
- Created on: 03-01-13 10:38
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- Excretion
- Removal of metabolic waste from the body
- CO2
- Excreted via lungs
- Excrete why?
- Reacts with haemoglobin to form carbamino-haemoglobin
- Respiratory acidosis
- H+ ions compete with oxygen for space on haemoglobin
- Nitrogenous compounds
- Body can't store proteins/ amino acids
- But contain a lot of energy, so wasteful to just excrete
- Deamination
- Ornithine cycle
- Body can't store proteins/ amino acids
- The liver
- Structure
- Functions
- Formation of urea
- Detoxification
- Destruction of RBCs
- Breakdown of hormones
- Storage of vitamins A, D and B12, iron and glycogen
- Control of blood glucose, amino acid and lipid levels
- Synthesis of RBC in fetus, bile, plasma proteins, cholestrol
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