The incredible length of biological polymers (sometimes tens ofthousands of monomers) often results in the formation of atertiary, 3-D structure. An example of this is in globularproteins. Which of these is NOT a force of attraction which usuallyacts between the different sections of the polypeptide chain of aglobular protein?
| 1. | Van der Waals' forces |
| 2. | Hydrogen bonds |
| 3. | ionic bonds |
| 4. | Metallic bonds |
