Why is cellulose so difficult for most animals to digest?
1. they don’t have the proper enzyme to break the bonds between subunits
2. cellulose is made up of chitin, which is indigestible
3. the bonds holding cellulose subunits together are extremely strong, stronger than in any other macromolecule
4. there are many hydrogen bonds holding the subunits together
I: | Cellulose does not contain complex helices. |
II: | Inulin is a polymer of fructose. |
III: | Left end of glycogen is the reducing end |