ə m /, FLOH-əm) is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as photosynthates, in particular the sugar sucrose, to parts of the plant where needed. They have a large central vacuole and a dense cytoplasm. Simple tissues making up the ground layers in plants. These are of three types: Parenchyma, collenchyma and sclerenchyma. Epidermal Tissue System 2. Ground tissues in roots may also store food. This tissue is present in all organs of the plant e.g., roots, stems, leaves, flowers, fruits and seeds. Collenchyma cells mainly form supporting tissue and have irregular cell walls. a. Parenchyma cells are living at maturity, polyhedral (many sided) shaped and capable of cell division. Parenchyma serves as packing tissue to fill the spaces between other tissues. Each cell has a vacuole at the center. Ground Tissue. epidermis, parenchyma, chlorenchyma, collenchyma, sclerenchyma and complex tissues consisting of different kinds of cells, e.g.xylem and phloem. They are two types, namely Xylem tissue and Phloem tissue. 1.4 Draw a fully labelled diagram to illustrate the structure of part labelled F. 1.5 List TWO functions of the leaf. Ground tissue includes all the tissues except the vascular tissue or part of the dermis (skin) of the plant. Ground Tissues System 3. Mention the two types of complex tissues and write their functions. In plants, parenchyma is one of three types of ground tissue.Ground tissue is anything that is not vascular tissue or part of the dermis of the plant.In contrast to collenchyma and sclerenchyma cells, parenchyma cells primarily consists of all of the simple, thin walled, undifferentiated cells which form a large majority of many plant tissues. Parenchyma forms the framework of all the plant organs and tissues like cortex. Collenchyma cells are known for providing mechanical support to the plants, by protecting the delicate inner part of the plant. 4.25 Give reasons: (a) Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole. Common Types of Plant Cells: 1. ii. They are subdivided into two groups, viz, simple tissues consisting of cells which are more or less similar, e.g. b. Plants have numerous types of specialized cells that are specifically designed to carry out life functions. ... Tissues Class 9 Extra Questions Short Answer Type 2. All cells are not able to perform all the functions. Vascular Tissue System. Ground tissue makes up much of the interior of a plant and carries out basic metabolic functions.Ground tissue in stems provides support and may store food or water. All the tissues of a plant which perform the same general function, regardless of position or continuity in the body, constitute the tissue system. The main function of parenchyma is to act as a packing tissue, it provides support in herbaceous plants. These cells are found in epidermis, cortex, pericycle, pith etc. These cells are metabolically active and are the sites for many of the vital activity of the plant body. 3.2 I-III) (i) Parenchyma: Parenchyma is the most common tissue which is morphologically and physiologically simple and unspecialized. The cells may be oval, circular or poly­gonal with intercellular spaces. Wood parenchyma and ray parenchyma are two types of parenchyma present in secondary xylem. The common characteristic of all […] They are living. 1.6 Explain how the leaf is suited to its functions. There are two different types of parenchyma in the leaf: spongy parenchyma and palasaide parenchyma (ONLY IN THE LEAF). Parenchyma in the primary plant body often occurs as a continuous mass, such as in the cortex or pith of stems, roots, mesophyll and flesh of fruits. The cells of this tissue are loosely packed and contain large intercellular spaces between them. Accordingly, it is distinguished into xylem parenchyma and phloem parenchyma. Parenchyma is found in all parts of plant such as cortex, pith, palisade, mesophyll, flower, seed etc; It is also found in vascular tissues. (CCE 2014) Answer: (a) Terrestrial plants being large and fixed not only require supportive tissues but also conducting tissues. Every type of tissue mentioned has the same set functions in almost all of the higher animals. Aerenchyma: it is a 1.2 Part labelled C consists of parenchyma tissue. The word parenchyma comes from the Greek word “parenkhyma“ which literally means “something poured in beside“.The word parenchymal is an adjective which can be used to explain an organ that provides the characteristics or functions of a parenchyma cell (e.g., being parenchymal).. 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