Which terms in the table correctly finish the paragraph about enzymes? When the pH of a surrounding environment falls below an enzyme’s optimum pH, ……… between neighbouring ……… groups, which maintain the ……… structure, are broken.
- Ahydrogen and ionic; R; tertiary
- Bhydrogen; hydroxyl; secondary
- Cionic and peptide; R; primary and tertiary
- Dpeptide; amine; primary