Which statement correctly describes the relationship between the pit canals and the function of sclerenchyma fibers?
Pit canals allow for limited intercellular communication and nutrient transport, even though the cells are typically dead at maturity.
Pit canals are sites of active lignin synthesis, contributing to the thickening of the secondary cell wall.
Pit canals weaken the cell wall, providing flexibility to the sclerenchyma fibers.
Pit canals store water, allowing sclerenchyma cells to survive in arid conditions.
Related Questions
Which of the following is NOT a type of sclerenchyma cell?
Fibers
Sclereids
Collenchyma
Bast fibers
What is the primary function of sclerenchyma tissue in plants?
Photosynthesis
Storage of food
Providing mechanical support
Transport of water
Sclerenchyma mainly provides
Storage tissue to the plants
Mechanical support to the organs of plants
Secretory tissue to the plants
Strength to monocot plants, specially their abundance in the layers below the epidermis
On the basis of variation in form, structure, origin and development, sclerenchyma may be
Fibres
Sclereids
Either (1) or (2)
Both (1) and (2)
The gritty texture of pear fruit is due to the presence of:
Stone cells (sclereids)
Collenchyma cells
Parenchyma cells
Xylem vessels
Sclerenchyma provides mechanical support to plants. Which component of the cell wall contributes most to this strength?
Cellulose
Pectin
Lignin
Suberin
In a plant adapted to arid conditions, you would expect to find a higher proportion of sclerenchyma tissue in which region, and for what primary purpose?
Stem, to provide structural support against strong winds and reduce water loss
Leaves, to increase photosynthetic efficiency in harsh sunlight
Roots, to enhance water absorption from deep soil layers
Flowers, to attract pollinators in a resource-scarce environment
Sclereids are a type of sclerenchyma cell. Which of these is NOT a typical characteristic of sclereids?
Forming continuous, elongated fibers in plant stems
Occurring singly or in small groups within other tissues
Having highly thickened and lignified cell walls
Varying greatly in shape, from isodiametric to branched
Which specific characteristic of sclerenchyma cells primarily contributes to their exceptional strength and rigidity, making them suitable for providing structural support in plants?
Presence of lignin in the secondary cell wall
High concentration of pectin in the middle lamella
Presence of living protoplasts at maturity
Thin and flexible primary cell wall
Sclerenchyma mainly provides
Storage tissue to the plants
Mechanical support to the organs of plants
Secretory tissue to the plants
Strength to monocot plants, specially their abundance in the layers below the epidermis
