Biology Module 5 0.0 / 5 ? BiologyCellular processesBiological molecules, organic chemistry and biochemistryA2/A-levelOCR Created by: StefaneiCreated on: 19-11-16 09:54 Excretion Removal of metabolic waste from the body 1 of 13 Metabolic waste Substances produced in excess from the metabolic processes in cells, it may be toxic 2 of 13 Hepatic portal vein Connects the intestine to the liver 3 of 13 Ornithine Cycle Series of biochemical reactions that convert ammonia into 4 of 13 Nephron a functional unit of the kidney 5 of 13 Ultrafiltration filtration of the blood at molecular level under pressure 6 of 13 Hypothalamus part of the brain that coordinates homeostatic responses 7 of 13 Endotherms an organism that uses heat from metabolic reactions to maintain body temperature 8 of 13 Ectotherms rely on external sources for heat and body temperature fluctuates with external temperature. 9 of 13 Urea synthesised from excess amino acids which the body cannot store 10 of 13 Deamination Breaking down amino acids into ammonia .(Removing amine group from amino acid). amino acid+oxygen -> keto acid and ammonia 11 of 13 Detoxification of alcohols Conversion of toxic molecules into less/non txic molecules 12 of 13 Basement membrane contains a network of collagen fibres and glyoproteins. This prevents anything greater than 6900 RMM from being filtered in. 13 of 13
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