Patient who had undergone a complex maxillofacial operation could not take food during 2 days, but glucose level in the patient's blood during that period was on the lower limit of normal. What mechanisms facilitate the maintenance of normal level of glucose in prolonged starvation? To answer this question: a) indicate normal fasting blood glucose level; b) draw the metabolic pathway ensuring glucose synthesis in patient's body during a period of starvation, mark the enzymes and coenzymes; c) list the substrates of this process and its localization

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