Metabolic Pathways Are Regulated to Maintain Homeostasis in the Face

Essay

Metabolic pathways are regulated to maintain homeostasis in the face of changing environmental conditions,such as nutrient supply.Describe how this is accomplished during the fed-fast cycle,that is,the progression from a fed state,to a postabsorptive/fasting state,to starvation,to prolonged starvation.Your answer should include specific processes/ metabolic pathways that are favored under each condition-make sure to cover pathways that are important to all three macronutrients (CHOs,lipids,protein).Also indicate the signal(s)involved in modulating these pathways.An example is provided in the table.