OCR A Biology
Waste Excreted Bile Products Breakdown Liver Nitrogenous Main
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Main metabolic waste products excreted in mammals |
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- CO2 (excreted from lungs as waste product of respiration)
- Bile pigments (formed from breakdown of haemoglobin from old RBC in liver, excreted in bile from liver and into Small intestine via gall bladder and bile duct)
- Nitrogenous waste products (urea) - formed from breakdown of XS AA in liver, urea is the nitrogenous waste and is excreted by kidney in urine
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OCR A Biology