Match each supporting structure or skeletal system on the left with its correct structural and functional characteristics on the right.
- Sclerenchyma tissueComposed of dead cells with heavily lignified secondary cell walls providing rigid mechanical support to non-growing plant organs.
- Collenchyma tissueComposed of living cells with localized pectin and cellulose thickenings at wall corners, providing flexible support to growing shoots.
- Hydrostatic skeletonConsists of fluid trapped under pressure within a enclosed muscular body compartment, facilitating peristaltic movement in soft invertebrates.
- ExoskeletonConsists of a hard chitinous outer cuticle that serves as an external framework for muscle attachment and requires periodic molting.
Answer
Sclerenchyma tissue matches with dead, lignified cells providing rigid support; Collenchyma tissue matches with living, unevenly thickened cells providing flexible support; Hydrostatic skeleton matches with pressurized fluid in a body cavity aiding locomotion; Exoskeleton matches with a chitinous outer framework requiring molting.
Each supporting structure is matched accurately based on cellular composition, wall chemistry, and mechanical function in plants and animals.
Step-by-Step Solution
Key Concept
Structural and functional adaptations of plant supporting tissues (sclerenchyma, collenchyma) and animal skeletal systems (hydrostatic, exoskeleton).