| Feature | Immature Tube | Mature Tube | | :--- | :--- | :--- | | Wall composition | Primary wall (cellulose) | Secondary wall (lignin) | | Cytoplasm | Present | Absent (dead) | | Conductivity | Low | High | | Repair capability | Yes | No |

Analysis of [System Name] in Mature Tubular Structures

Histological changes in the mature human Fallopian tube compared to the neonatal tube.

Oxidation kinetics of mature stainless steel tubes in supercritical water reactors.