The number of water molecules needed to hydrolyze a polymer made of 51 monomers will be:
| 1. 1 | 2. 25 |
| 3. 50 | 4. 51 |
| A | B | C | D | |
| 1. | Reducing end | Non reducing end | α [1→4] linkage | α [1→6] linkage |
| 2. | Non reducing end | Reducing end | α [1→4] linkage | α [1→6] linkage |
| 3. | Reducing end | Non reducing end | α [1→6] linkage | α [1→4] linkage |
| 4. | Non reducing end | Reducing end | α [1→6] linkage | α [1→4] linkage |
What linkage is shown in the following figure [indicated by an arrow]?
| 1. β-1,4-glycosidic bond 2. α-1,4-glycosidic bond 3. α-1,β-4-glycosidic (head-to-head) linkage 4. α-4,β-1-glycosidic (head-to-head) linkage |