| A | B |
|---|
| trypsin | activated by the enzyme enterokinase |
| chymotrypsin | activated by trypsin |
| carboxypeptidase | proenzyme procarboxypeptidase |
| aminopeptidase | attacks amino end of the peptide chain |
| dipeptidase | final enzyme in the protein splitting system |
| hydrochloric acid | coverts pepsinogen to pepsin |
| pepsin | inactive proenzyme, pepsinogen |
| rennin | only present in infancy and childhood |
| zymogens | inactive proenzymes |
| proenzyme | forerunner substance from which another substance is made |
| chemical score | derived from the amino acid pattern of food |
| biological value | based on nitrogen balance |
| net protein utilization | based on the biological value and the degree of digestability |
| marasmus | chronic form of energy and protein deficiency |
| kwashiorkor | protein energy malnutrion that is more common in children 18 to 24 months |
| catabolism | process of breaking down protein |
| anabolism | resynthesizing proteins, building up |
| deamination | removing the nitrogen from protein |
| complete protein | foods that contain all nine indispensable amino acids |
| protein | fundamental strutural material for every cell in the body |
