All the following regarding parenchyma tissue in plants are correct except:
| 1. | Cells are generally isodiametric |
| 2. | Cell walls are generally thick |
| 3. | Cell walls are made of cellulose |
| 4. | They perform photosynthesis, storage and secretion |
| Statement I: | Parenchyma is living but collenchyma is dead tissue. |
| Statement II: | Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms. |