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F214 Revision: Excretion

F214 Revision: Excretion. Describe the structure of the liver Describe the formation of urea including the ornithine cycle Describe the structure of the kidney including the blood vessels

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F214 Revision: Excretion

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  1. F214 Revision: Excretion • Describe the structure of the liver • Describe the formation of urea including the ornithine cycle • Describe the structure of the kidney including the blood vessels • Explain the production of urine and water control in the body including osmoreceptors in the hypothalamus and pituitary gland • Outline renal dialysis • Describe how urine samples can test for illegal drugs and pregnancy

  2. F214 Revision: Respiration • Describe and draw ATP • Explain why ATP is a suitable molecule for energy currency • Outline the process of glycolysis, the link reaction and the krebs cycle including where they take place • Explain the importance of coenzymes e.g. NAD and coenzyme A • Explain the terms decarboxylation, substrate level phosphorylation, dehydrogenation, reduction and oxidation (in terms of NAD) • Outline the experimental evidence for chemiosmosis • Outline anaerobic respiration in mammals and yeast • Explain why anaerobic respiration results in a lower energy yield than aerobic respiration • Define respiratory substrate and explain the difference in energy values for protein, carbohydrate and fat

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