into glycerol and fatty acids, which can be used to generate energy. The primary by-products of metabolism are carbon dioxide and water; carbon dioxide is , https://www.evernote.com/shard/s325/sh/cb2204b8-b4f1-4fe2-89bb-999687371d01/75456d06812b21de780f48eef0a2a455 hcg 800 calorie, 7656,