| Select | | View | Download | | 56.1 Some examples of natural polymers | | |
| 56.2 Structure of cellulose | | |
| 56.3 Properties of cellulose | | |
| 56.4 Structure of chitin | | |
| 56.5 Properties of chitin | | |
| 56.1 Some examples of natural polymers (bilingual version) | | |
| 56.2 Structure of cellulose (bilingual version) | | |
| 56.3 Properties of cellulose (bilingual version) | | |
| 56.4 Structure of chitin (bilingual version) | | |
| 56.5 Properties of chitin (bilingual version) | | |
| Natural polymers (combined version) | | |
| Natural polymers (bilingual, combined version) | | |