Question

Which of the following provides mechanical support?

• A. Collenchyma, schlerenchyma and vascular tissue
• B. Parenchyma and meristems
• C. Mesophyll tissue
• D. Cork cambium and apical meristem

Answer 1

The correct option is A Collenchyma, schlerenchyma and vascular tissue

Collenchyma cells have thin primary walls with some areas of secondary thickening. Collenchyma provides extra structural support, particularly in regions of new growth.

Sclerenchyma cells have thick lignified secondary walls and often die when mature. Sclerenchyma provides the main structural support to a plant.

Vascular tissue is a complex conducting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue are the xylem and phloem. Xylem is primarily instrumental in the conduction of water and solutes, and also for mechanical support. Although the primary function of phloem is the transport of sugars, phloem may also contain cells that have a mechanical support function. So, the correct answer is option A.