Final answer:
Before an excess amino acid can be used for energy or gluconeogenesis, or stored as fat, it must first be converted to acetyl CoA or glucose or ketones.
Step-by-step explanation:
Before an excess amino acid can be used for energy or gluconeogenesis, or stored as fat, it must first be
- converted to acetyl CoA
 - converted to glucose or ketones
 - converted to nitrogen
 - stored to be used later