Energy - what metabolism is all about

This set of exercises introduces the main metabolic fuels that are available, and the concepts of metabolic pathways and coenzymes, as well as the idea that the energy-yielding metabolism of carbohydrates, fats and proteins is one of oxidation to provide metabolically useable energy (in the form of ATP) for the various energy-requiring activities of the body.

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Carbohydrate digestion and metabolism

This set of exercises introduces the main pathways of carbohydrate metabolism: glycolysis, gluconeogenesis and the pentose phosphate pathway, as well as the synthesis and utilisation of glycogen.

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Lipid digestion and metabolism

This set of exercises introduces the main pathways of lipid metabolism: beta-oxidation, fatty acid and triacylglycerol synthesis, and ketone body formation and metabolism.

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Amino acid and nitrogen metabolism

This set of exercises introduces the main pathways in the metabolism of amino acids and the estimation of protein and amino acid requirements.

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Central pathways and the integration and control of metabolism

This set of exercises introduces pathways that are common to carbohydrate, lipid and amino acid metabolism - the central metabolic pathways. These pathways can be considered to be both catabolic, leading to ATP formation, and also anabolic, leading to synthesis and interconversion of metabolic substrates.

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Miscellaneous topics

This is a selection of problem-solving exercises on various aspects of metabolism other than the central pathways of energy-yielding metabolism, and carbohydrate, lipid and amino acid metabolism.

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