| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | histidine | biochemistry | An essential amino acid for humans, important for protein synthesis and vital body functions. | 1 |
| 2 | histidine | biochemistry | Histidine is an essential amino acid necessary for the growth and repair of tissues in the human body. | 1 |
| 3 | histidine | biochemistry | Histidine plays a key role in catalytic activity and metal binding in enzymes, and is important in protein structure and function. | 1 |