The protoxylem and protophloem in a dicot stem differ primarily in their:
Maturation time and position relative to the metaxylem and metaphloem
Cell wall composition and function
Presence or absence of living cells at maturity
Overall size and shape of their conducting elements
Related Questions
What is the primary function of sclerenchyma?
Photosynthesis
Storage of food
Transport of water
Providing mechanical support
The main function of xylem parenchyma is:
Storage of food
Transport of water
Providing mechanical strength
Transport of minerals
What is the primary function of the Casparian strip in the endodermis of roots?
Provides structural support to the root.
Stores starch and other nutrients.
Regulates the passage of water and minerals into the xylem.
Facilitates gas exchange between the root and the soil.
Which specific characteristic of tyloses contributes to the blockage of xylem vessels in heartwood?
Protrusion of parenchyma cells into vessel lumens
Deposition of lignin in the vessel walls
Accumulation of tannins and resins
Collapse of vessel elements due to negative pressure
In a conjoint, collateral, and open vascular bundle, which tissue separates the xylem and phloem?
Cambium
Pith
Cortex
Pericycle
I. Vascular tissue
II. Cork cambium
III. Xylem and phloem elements
IV. Parenchyma and sclerenchyma
Choose the correct combination for heterogenous tissue
I and II
II and III
I, III and IV
II and IV
Which cell type in xylem conducts water?
Xylem parenchyma
Xylem fibres
Companion cells
Tracheids and vessels
The 'Hadrome' in plants specifically refers to:
The xylem tissue specialized for water conduction
The phloem tissue specialized for nutrient transport
The ground tissue responsible for storage and support
The meristematic tissue capable of cell division
Complex tissue includes
Collenchyma
Apical meristem
Conducting tissue
Idioblast
Which cell type in xylem provides mechanical strength?
Xylem parenchyma
Xylem vessels
Xylem tracheids
Xylem fibres
