BIOL1003 Lecture Notes - Lecture 20: Peritubular Capillaries, Afferent Arterioles, Thalamus
9 Aug 2018
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Document Summary
Undigested food in the large intestines (faeces) removed by defecation, e. g. cellulose important fiber component of our diet of faeces important to allow faeces to form and cleansing our. Excess ions and water which are produced by our body / ingest: breakdown of amino acids in the form of nh3 (ammonia), our digestions of food. Metabolism produces wastes: excreted: breakdown of creatine phosphate (important for muscle contraction) in the form of creatinine, breakdown of nitrogenous bases from rna in the form of uric acid, excretory organs where wastes are excreted from. ,water and heat when we exhale: heat, water, some salts which contain irons which may not be required. Liver doesn"t excrete anything but prepares waste: bilirubin (becomes component of bile) bile allows emulsification of fat into smaller globules so enzymes can get access, converts nh. Digestive system: solid wastes, pigments (bilirubin in bile which gives faeces the brown colour, water, heat.
