Concept 5 Review:
Cells that Support and Protect
Collenchyma and sclerenchyma cells are specialized to provide support and protection in plants.
For each of the functions of the cells listed below, describe how the function is dependent on one or more of the characteristics of those cells.
Cell Type
Collenchyma cells
Animate
Fiber cells
Animate
Sclereid cells
Animate
Characteristics
• Alive at maturity
• Unevenly thick primary cell wall
• Dead at maturity
• Secondary cell wall
• Dead at maturity
• Thick secondary cell wall
Functions
• Support in petioles, young stems, and roots
• Support
• Protection
• Protection
• Support
The Basic Cell: Parenchyma
