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circulating energy substrates include glucose, fatty acids and amino acids, as well as ketone bodies and ______.

User Ctuffli
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Answer: lactate

Step-by-step explanation:

The missing circulating energy substrate is lactate. Lactate is a product of anaerobic metabolism and can serve as an energy source in certain conditions, such as during intense exercise or in tissues with high glycolytic activity. It can be converted back into glucose through a process known as the Cori cycle and utilized as an energy substrate by various tissues in the body.

User Holy Semicolon
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