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
Related Questions
On the basis of variation in form, structure, origin and development, sclerenchyma may be
Fibres
Sclereids
Either (1) or (2)
Both (1) and (2)
Which of the following is a characteristic feature of sclerenchyma cells?
Thin, permeable primary walls
Thick, lignified secondary walls
Presence of large intercellular spaces
Abundant cytoplasm
Which of the following is NOT a type of sclerenchyma cell?
Fibers
Sclereids
Collenchyma
Bast fibers
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
Which of the following statements is true?
The collenchyma occurs in layers below the epidermis in monocotyledonous plants
Sclerenchyma cells are usually dead and without protoplasts
Xylem parenchyma cells are living and thin-walled and their cell walls are made up of lignin
The companion cells are specialised sclerenchymatous cells
Sclereids are a type of sclerenchyma cell. Which of the following best describes their shape?
Elongated and tapered
Varied shapes, often short and branched
Star-shaped
Cuboidal
The gritty texture of pear fruit is due to the presence of:
Stone cells (sclereids)
Collenchyma cells
Parenchyma cells
Xylem vessels
The main component responsible for the rigidity of sclerenchyma cells is:
Cellulose
Pectin
Lignin
Suberin
Which plant tissue would you expect to find abundantly in the hard shell of a walnut?
Parenchyma
Collenchyma
Sclerenchyma
Xylem
Which of these cell types are commonly dead at maturity due to the deposition of lignin?
Parenchyma
Collenchyma
Sclereids
Sieve tube elements
