Agustus 08, 2011

Kind of Understanding Living Tissue

Kind of Understanding Living Tissue. Biology lesson on something like that does not exist. Biology lesson about the bermaterikan about networking. Blog Edughoni will explain a bit about the meaning and the various tissues of living creatures. This info you can use with as they pleased. The information available on the Internet can be utilized for other tasks and so on.

Well, soon we read and learn material that is written here. Here's a complete summary of the understanding and the various networks in Biology.

1. Understanding Network
Network is a group of cells that have the same form and function. Thus, the network is almost possessed by multicellular living things (multisluler). Every living thing comes from breeding by mating (generative) or are not married (vegetative) propagation in mating occurs on mixing between the ovum and sperm cell to form a zygote. The zygote divides continually to form embryos, and embryos develop into new individuals. Tues zygote divides many times, first to form a uniform cells (blastula). These cells do not yet have specific functions. At the time of embryonic development, these cells develop into different cell types that form in accordance with its function. Cells undergo differentiation and specialization. So from a uniform cells turn into different cell types that form in accordance with its function.

2. Kinds Network
Jaringanpenyusun different kinds of plants with a range of body constituent body tissues of animals and humans. Here will be described constituent body tissues of plants and animals.

Based on its nature, plant tissue can be divided into two kinds, namely merestematik tissue and permanent tissue. Merestematik tissue (embryonic tissue) consists of a collection of young cells that continue to divide producing another network. Examples of meristematic tissue is meristem tissue in stems and roots and shoots
Cambium tissue. Meristem tissue at the tip of the stem and roots of plants resulted in increased height. Cambium tissue produces wooden vessel and vascular network filters that cause plants to grow big. Results cleavage meristematic tissue called a permanent network, because it does not differentiate anymore.
Based on the structure and function, permanent networks can be divided into the following:

1. Network of cover or protector, namely the epidermis and cork tissue.
2. Filler network, ie parenkima.
3. Amplifier networks, namely kolenkima dansklerenkima.
4. Transport network, ie xylem and phloem.
5. Network protector

Protective tissue consisting of epidermis and cork tissue.

   1. Epidermis
Epidermal tissue is a tissue of a plant which is located outermost. Epidermal tissue covering the entire body of plants from roots, stems, up to the leaves. Epidermis usually consists only of a flat-shaped layer of cells and meetings. Epidermal tissue functions as a network protector on it as well as a place of exchange of substances. Leaf epidermal tissue found on the surface of the upper and lower leaf surfaces. Leaf epidermal tissue has no chloroplasts except on the cover cells of stomata. On the upper leaf surface, the outer walls that form the epidermis there is a thick layer called the cuticle layer of leaves such as taro and banana leaves; there is a fluffy eg durian leaves. Leaf stomata or mouth is a modification of the epidermis which serves for gas exchange. Existing stem epidermal tissue that forms a thick layer (the cuticle layer) or forming hair (trikoma) as a means of protection. There are root epidermal tissue into the root hairs. Root hairs serves to absorb water and mineral salts.

   2. Network cork
Cork tissue (periderma) formed by Cambium cork. Cork tissue that forms will replace the epidermis. Cork tissue composed of cells that have died. Cork is formed on the tree used as a cork bottle stoppers.

6. Tissue fillers (parenkima)
Among the epidermis and the pith tissue contained parenkima network. Parenkima network is also called the basic network as a place for other tissues. Parenkima network composed of many-sided cells. Between the single cells with other cells that there is space between cells. In general, uniform parenkima cells, have thinner cell walls, and a living cell. Within this network there are network parenkima amplifier, xylem, phloem, and Cambium. On leaves, leaf mesophyll tissue forming parenkima. Mesophyll leaf tissue is composed of the fence and sponge tissue. Network fence (palisade) arranged like a fence row. Network of irregularly shaped sponge, causing cavities between cells. Fences and flower tissue serves as a place of photosynthetic corals. Some parenkima stems and roots there that serves to store the flour as a food reserve.

7. Network amplifier

Plants have a reinforcing or supporting tissue. There are two kinds of amplifiers that make up the body's tissues of plants, namely kolenkima and sklerenkima.

1. Kolenkima
Tues kolenkima a living cell, its cell walls contain cellulose, pectin, and hemicellulose. Kolenkima generally located below the epidermis of the stem, petiole, flower stalks and leaves of maternal bone. Kolenkima rarely found on the roots. Kolenkima different parenchymal for kolenkim cell wall thickening. Kolenkima uneven thickening of the wall throughout the cell, for example, only at the corners of the cell, so-called kolenkima angle. On the network kolenkima there is no space between cells. Kolenkima Network serves as an advocate on the young plants being grown and on wet plants (herbs).

2. Sklerenkima
Sklerenkima network composed of dead cells whose walls are very thick, strong and contains lignin. Sklerenkima Network serves as an amplifier. According to its shape, sklerenkima divided into two, namely fibers and stone cells. Fiber or fibers sklerenkima shaped like a long thread. Tues sklereid stone or a variety of forms. Called stone cells because of the hard cell walls, for example in the coconut shell.

8. Carrier Networks
Carrier network is only found in higher plants. This network serves to transport water, mineral salts, and the result of photosynthesis. Tissue cells such as transporting a vessel or pipe, so the network is called vascular tissue. Xylem and phloem vessels together form a bond beam. Network consists of a network of vessels carrying wood (xylem) and vascular filters (phloem). In dikotil plants, located next to the xylem and phloem are on the outside. Xylem is composed of elongated cells that have died. Harden the cell wall and is composed of cellulose. Xylem is part of the wood. The cells are concatenated to form these vessels, which serves to transport water and mineral salts from the root to the leaves. Transport network is another filter vessels (phloem). Phloem consists of living cells and thin-walled. Phloem is part of the bark. Its function is to transport nutrients from the leaves of photosynthesis throughout the plant body. At some plants there phloem fibers or fibers that contain lignin. These fibers can be used as a rope and textiles, such as hemp (Boehmeria Nivea), linen (Linum usitatissimum), and jute (Corchorus capsularis).

9. Cambium tissue
In plants dikotil, Cambium is located between the xylem and phloem tissue. Cambium consists of a series of cells that are alive and always splitting. Cambium cell division towards the preformance produce xylem and since e direction produces phloem phloem. Cambium activity causes the plants to grow bigger. Cambium activity during the rainy season high, while low in the dry season. Since it formed a circle in the trunk of the plant dikotil, eg on the trunk of teak, jackfruit, mahogany.

because the article Kind of Understanding Living Tissue long discussion continued with the next animal tissue.

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Title: Kind of Understanding Living Tissue


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