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because have dead cell at maturity
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Why intercellular spaces are absent in sclerenchymatous cells?
There are no intercelluar spaces present in the scerlenchymatous tissue as it provides rigidity to the plants part in which they are present.They contain a chemical called lignin which acts as a cement like substance which hardens the cels & also the cells of sclerenchyma are dead
What is the most abundant plant tissue with thin cell walls and intercellular spaces?
The most abundant plant tissue with thin cell walls and intercellular spaces
How does sclerenchyma structure relate to their function of support?
Sclerenchyma have long columns of cells, each cell is thick. The end walls of sclerenchyma are often perforated (contain holes). Xylem and phloem are often surrounded by layers of sclerenchyma
What is the function of dicot stem cell?
Epidermis The structure and functions of this tissue are the same as those of the epidermis of the stem of a dicotyledonous plant. The epidermis consists of a single layer of living cells which are closely packed. The walls are thickenedand covered with a thin waterproof layer called the cuticle. Stomata with guard cells are found in the epidermis. In some stems either unicellular or multicellular hair-like outgrowths, trichomes, appear from the epidermis. * Functions * The epidermis protects the underlying tissues. * The cuticle prevents the desiccation of inner tissues and thus prevents water loss . * The stomata allows gaseous exchange for the processes of respiration and photosynthesis. Ground Tissue This region is composed of small, thick-walled sclerenchyma on the inside of the epidermis. These layers of cells are followed by larger thin-walled parenchyma cells. Intercellular air spaces are found in the parenchyma. A cortex or pith is absent. * Functions * Sclerenchyma tissue strengthensthe stem. * Parenchyma tissue stores synthesised organic food such as starch. * Intercellular air spaces allow the exchange of gases. Vascular Bundles The vascular bundles are found scattered throughout the ground tissue. The vascular bundles occurring nearer the rind of the stemare smaller and are closer to one another. The vascular bundles contain no cambium and consequently secondary thickening does not occur. The vascular bundle is composed of the following parts:* Sclerenchyma sheath Thick-walled sclerenchyma fibres surround the vascular bundle. ** Function of the Sclerenchyma sheath ** Sclerenchyma sheaths protect the vascularbundles and give strength to the stem. * Xylem Large xylem vessels are found within an irregular intercellular air space called the lysigenous cavity. This space is surrounded by thin-walled parenchyma cells. ** Functions of the Xylem ** Xylem transports water and dissolved ionsfrom the root system to the stem. ** The lignified thick-walled xylem cells strengthen the stem. * Phloem Phloem is composed of thin-walled cells, viz. sieve tubes and companion cells. ** Function of the Phloem ** The phloem transports synthesized organic food such as carbohydrates from the leaves to other parts of the plant
Are there visible nuclei in the sclerenchyma tissue?
The nuclei is not visible in the sclerenchyma tissue at maturity because the cells are usually dead.
Are there intercellular spaces?
Yes, there are intercellular spaces which are usually used for gas exchange between the cells.
Why intercellular spaces are absent in sclerenchymatous cells?
There are no intercelluar spaces present in the scerlenchymatous tissue as it provides rigidity to the plants part in which they are present.They contain a chemical called lignin which acts as a cement like substance which hardens the cels & also the cells of sclerenchyma are dead
What does the epithelial tissue lack?
intercellular spaces
What is the most abundant plant tissue with thin cell walls and intercellular spaces?
The most abundant plant tissue with thin cell walls and intercellular spaces
Are nerve tissues intercellular spaces filled with collagen?
yes
What abnormal accumulation of fluid in the intercellular spaces of the body that is localized or diffused is referred to as?
Edema
What is the purpose of intercellular spaces in plant cells?
to let gases go from 1 cell to another
The movement of a gas into moist intercellular spaces through stomates is an adaptation for respiration in?
Plants.
Are there intercellular spacesin the tissue?
Intercellular spaces are there for gas exchange between cells. Because of these spaces, cells deeper in the tissue can get the gas. If not, only the cells on the surface will get what they need.
What does the spongy layer of a privet leaf do?
Spongy Layer - A layer of the mesophyll. The spongy layer consists of chloroplasts and parenchyma cells, and relatively large intercellular spaces. It is far less ordered than the palisade layer, and the intercellular spaces are important in gas exchange and transpiration.
What fills the space between cells?
The spaces between cells are pores or air spaces. These spaces are scientifically called intercellular or extracellular spaces or material.
What returns excess fluid and proteins from the intercellular spaces to the blood?
The lymphatic system, or the lymph system, they're the same thing.
