The balloonshaped structures called tyloses (a) originate in the lumen of vessels (b) characterise the sapwood (c) are extensions of xylem parenchyma cells into vessels (d) are linked to the ascent of sap through xylem vessels.
Identify the wrong statement in context of heartwood. (a) It is highly durable. (b) It conducts water and minerals efficiently. (c) It comprises dead elements with highly lignified walls. (d) Organic compounds are deposited in it.
Which of the following is made up of dead cells? (a) Collenchyma (b) Phellem (c) Phloem (d) Xylem parenchyma
Root hair develop from the region of (a) elongation (b) root cap (c) meristematic activity (d) maturation.
The vascular cambium normally gives rise to (a) primary phloem (b) secondary xylem (c) periderm (d) phelloderm.
A major characteristic of monocot root is the presence of (a) vasculature without cambium (b) cambium sandwiched between phloem and xylem along the radius (c) open vascular bundles (d) scattered vascular bundles.
Cortex is the region found between (a) epidermis and stele (b) pericycle and endodermis (c) endodermis and pith (d) endodermis and vascular bundle.