You have been stranded in a remote area for eight days with nothing to eat. The process that your body uses to produce “an alternate form of energy” under these circumstances is:

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Ketogenesis is the process by which the body produces ketone bodies from stored fat in the absence of glucose (i.e. during a period of fasting or starvation). Ketone bodies can be used by the body as an alternate form of energy to sustain vital functions. Gluconeogenesis refers to the synthesis of glucose from non-carbohydrate sources, such as amino acids, which occurs mainly in the liver during periods of fasting. Proteolysis refers to the breakdown of proteins into amino acids, but this process does not directly produce energy. Lipogenesis is the process by which the body creates fat from excess glucose, which is not relevant in these circumstances.

You Have Been Stranded in a Remote Area for Eight