The parenchyma cells in between the sieve tubes of the phloem, and functions primarily for food storage.
Primary phloem 1. . Derived from procambium of apical meristem. 2. . District protophloem and metaphloem elements.3 Sieve tubes long and narrow. 3. Less or no development of phloem parenchyma. 4. Phloem fibres on the outer part. Secondary phloem 1. . Derived from vascular cambium. 2. . No clear demarcation between protophloems and metaphloems. 3. Sieve tubes short and wide. 4. .Well developed and abundant phloem parenchyma. 5. . Phloem fibers among the phloem parenchyma.
Xylems and phloems look alike due to their specialized structure and function. Xylem in the vascular plants consists of similar tissues of trachieds, vessels and xylem parenchyma and perform the same function of transportation of water and minerals, hence it looks similar in all such plants. Likewise phloem consists of sieve tubes, companion cells and phloem parenchyma and perform the same function of conduction of food material to different plant parts.
Parenchyma cells in "phloem tissue"
Because vascular bundles comprise several types of cells such as Sclerenchyma, bundle sheat, sievetubes, companion cells and phloem parenchyma and Vessels, trachieds and xylem parenchyma.
Parenchyma cells are defined as simple plant tissue, composed of thin-walled cells and forming the greater part of leaves, roots, the pulp of fruit, and the pith of stems. They are always alive so their life span is the life span of the leaf which they are a part of.
Xylem contains Vessels, trachieds and xylem parenchyma Phloem consists of sieve tubes, companion cells and phloem parenchyma
i) Sieve tubes (ii) Companion cells (iii) Phloem parenchyma (iv) Phloem fibres
i) Sieve tubes (ii) Companion cells (iii) Phloem parenchyma (iv) Phloem fibres
Primary phloem 1. . Derived from procambium of apical meristem. 2. . District protophloem and metaphloem elements.3 Sieve tubes long and narrow. 3. Less or no development of phloem parenchyma. 4. Phloem fibres on the outer part. Secondary phloem 1. . Derived from vascular cambium. 2. . No clear demarcation between protophloems and metaphloems. 3. Sieve tubes short and wide. 4. .Well developed and abundant phloem parenchyma. 5. . Phloem fibers among the phloem parenchyma.
Xylems and phloems look alike due to their specialized structure and function. Xylem in the vascular plants consists of similar tissues of trachieds, vessels and xylem parenchyma and perform the same function of transportation of water and minerals, hence it looks similar in all such plants. Likewise phloem consists of sieve tubes, companion cells and phloem parenchyma and perform the same function of conduction of food material to different plant parts.
parenchyma
Chlorenchyma and parenchyma
Both are different structurally and functionally. The xylem cosists of Vessels, trachieds, and parenchyma and is responsible for conduction of water and minerals. the phloem consists of sieve tubes, companion cells and phloem parenchyma and is responsible for conductions of prepared food material in different parts of the plant.
A specialized parenchyma cell, located in the phloem of flowering plants and closely associated with the development and function of a sieve-tube element. Companion cells probably provide ATP, proteins, and other substances to the sieve-tube elements, whose cytoplasm lacks many structures necessary for cell maintenance.
Parenchyma cells in "phloem tissue"
Xylem is different from phloem structurally and functionally.Xylem consists of Tracheids, vessels and xylem parenchyma whereas phloem consists of Sieve tubes, companion cells and phloem parenchyma.Xylem conducts water and minerals to the leaves whereas phloem transports the prepared food from leaves to different parts of plant body.
There are four types of plant tissue. Vascular tissue , which is xylem and phloem, and epidermal tissue which is comprised of parenchyma cells. The ground tissue is a combination of parenchyma, collenchyma, and sclerenchyma cells. And the meristematic tissue is made of parenchyma cells.