Describe the need for catabolic-anabolic homeostasis in managing the body's energy requirements
Explain the interconversion of fuels in the absorptive and postabsorptive state
Explain the terms: glycogenesis; glycogenolysis; gluconeogenesis
glycogenesis = polymerises glucose to form glycogen
glycogenolysis = the breakdown of glycogen stores to release glucose this can occur in the liver or muscle cells, if it occurs in muscle cells it can only supply the muscle cell that the glycogen store is broken down within, this is because muscle cells do not contain the enzymes to cleave the phosphate group off glucose that is added to it when it enters the cell (to stop it leaving when it is needed) and so it cannot leave the cell itself however can supply the muscle cells. the liver DOES contain the required enzyme to remove the phosphate group and so it can cleave the phosphate group and glucose can exit the cell and enter the blood stream
gluconeogenesis = Lactate + amino acids can respectively be made into pyruvate which then undergo a reaction with the enzyme "pyruvate carboxylase" to create oxaloacetate which then undergoes a reaction with "phosphoenol pyruvate carboxykinase" to create phosphoenol pyruvate which then undergoes gluconeogenesis which produces Glucose 6-phosphate. which then undergoes a reaction with "glucose 6-phosphatase" in the liver and kidney to create glucose
Describe lipogenesis, lipolysis including beta-oxidation and role in cellular metabolism
Explain the need for deamination and transamination of amino acids in cellular metabolism
deamination = Typically in humans, deamination occurs when an excess in protein is consumed, resulting in the removal of an amine group, which is then converted into ammonia and expelled via urination. This deamination processĀ allows the body to convert excess amino acids into usable by-products .