Ground Tissue System It is also called the fundamental tissue system. This tissue system constitutes the main bulk of the body of plants. The tissues that do not come under the epidermal tissue system and vascular tissue system constitute the fundamental or ground tissue system. Various simple tissues like parenchyma, collenchyma and sclerenchyma are present …
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Epidermal Tissue System This tissue system forms the outermost covering of the plant body. It is in the direct contact with the external environment. The epidermal tissue system comprises Epidermal cells, Epidermal structures, i.e., stomata Epidermal appendages the trichomes and hairs (a) Epidermis Epidermis is the outermost layer of the primary plant body. It is …
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Phloem | Definition, Types, Location and Functions Phloem: It is a living tissue that carries food materials, (in particular, sucrose, a sugar), from the place it is available (source) to the places where it is needed (sink). It transports the organic materials, usually from leaves to other parts of the plants like roots, growing tips …
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Xylem | Definition, Types, Location and Functions Definition of Xylem “Xylem is the part of a plant that transports water from the roots to the leaves and stems, transporting various nutrients along with it”. It is the chief water-conducting tissue of the plants. Xylem functions as a conducting tissue for water and minerals from the …
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Complex Permanent Tissues | Definition and Types “A complex tissue can be defined as a collection of structurally dissimilar cells performing a common function or set of functions.” The complex tissues are made up of more than one type of cells. These cells differ from one another in their form and structure; however, these cells …
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Reproduction Definition “Reproduction is the process of producing offspring that are biologically or genetically similar to the parent organism.” Types of Reproduction There is a large diversity in the biological world. Each organism has evolved its own mechanism to multiply and produce offsprings. Both external (habitat) as well as internal (physiology) factors are collectively responsible …
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Basic Features of Reproduction 1. Cell Division A key event which occurs during reproduction is cell division. In the previous classes you have studied two types of cell division ie., mitosis and meiosis. Mitosis is a division in which replicated chromosomes equally distributed into two daughter nuclei so that the daughter cells have same number …
Sclerenchyma | Definition, Types, & Function Sclerenchyma is a Greek word meaning hard tissue. Sclerenchyma is the supportive Tissue, which is composed of various hard woody cells. Sclerenchyma cells once matured are usually the dead cells that have heavily thickened secondary walls containing lignin. It has following features — Cells of sclerenchyma are called sclerenchymatous …
Collenchyma Collenchyma is a cellular tissue that, along with parenchyma, composes the bulk of plant tissues. Various features of collenchyma are as follows Collenchyma is an elastic, living, mechanical tissue. Cells of this tissue are called collenchymatous cells which may be oval, spherical or polygonal in shape The intercellular spaces are absent because these cells …
Parenchyma cells Parenchyma is a simple permanent tissue that makes a major part of ground tissues in flowers, in which other tissues like vascular tissues are embedded. Parenchyma is non-vascular and composed of simple, living, and undifferentiated cells, which can be changed to carry out many functions. The various features of parenchyma are: It is …
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