The citric acid cycle has a unique circular appearance when written due to the regeneration of oxaloacetate. Which of the following molecules is oxaloacetate? 
Definitions:
Peristomal Skin
The skin surrounding a stoma, which can be sensitive and requires careful maintenance to prevent irritation.
Rolled Gauze
A type of medical dressing made of a thin, woven fabric that is rolled and used for wound care.
Ileal Portion
The final part of the small intestine that connects to the large intestine.
Small-Intestine
The part of the gastrointestinal tract between the stomach and large intestine that digests and absorbs nutrients from food.
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