Besides cellulose, the cell wall contains high amounts of hemicellulose and pectin. Primary Xylem which is found in the early stages of a growing plant, helps in the growth of the plant body. 2. b & c. ANIMAL TISSUE MCQ Epithelial Tissue. There are two types of complex permenent tissues. The metabolic rate is lower in the cells of permanent tissues. This tissue is responsible for storage of food, slow conduction and turgidity of soft tissues. Complex permanent tissue is composed of two or more than two types of cells and contribute to a common function. Sclereids are shorter whereas fibres are longer. iii. Complex tissues are made of more than one type of cells. The cells are structurally and functionally dissmiliar. These are of two types: 1. While simple tissue is homogenous, complex is heterogeneous. Which tissue provides mechanical strength to plant Sclerenchyma Parenchyma Collenchymas Chlorenchyma Answer: 1 Q3. (b) Tissues with large intercellular spaces and cells having large air cavity. Pro Lite, Vedantu The functions of these tissues are to provide mechanical strength, elasticity, and tensile strength to the plant body. The bone tissue has two types of the matrix material. These tissues are derived from meristematic tissues. A tissue with the cells of similar structure and function is called simple tissue. Phloem is composed of four kinds of cells: sieve elements, companion cells,phloem parenchyma and phloem fibres. Examples of complex tissues are xylem and phloem. Tissues that are related to the secretion of gums, raisins, volatile substances, nectar, latex, etc. Like xylem, phloem is also a complex tissue. Simple permanent tissues are made up of cells from the same origin, which have similar structures and functions. Collenchyma may contain chloroplasts and carry out photosynthesis. • Examples : Parenchyma , collenchyma and sclerenchyma . They are also called as homogenous tissues and they are further classified into three types. Les cellules des tissus permanents ont une forme définie. parenchyma, collenchymas and sclerenchyma. Thus, complex tissues consist of cells that are not of one type. It also participates in the sugar manufacturing within the plant body and stores it in the form of starch. Simple permanent tissues are made up of cells from the same origin, which have similar structures and functions. They are made up of only one type of cell. It is also known as vascular tissue; Types of complex tissue: I. Xylem. It also provides physical support to the plants. The three complex tissues are parenchyma, collenchyma, Sclerenchyma. These arise from the meristematic tissue. The cells have lignified secondary walls. 534) is the most common simple tissue of the plants with relatively little specialisation. Due to thick and rigid outer cell walls consisting of lignin, it is impermeable to water. Companion cells are absent in pteridophytes and gymnosperms. Complex permanent tissue contains different types of cells . These glands contain either secretory or excretory products. The phloem of the bust plant tissue is another type of vascular tissue found in plants. Internal cavities and passageways and form certain glands. Complex permanent tissue. Parenchyma . The different types of tissues we have discussed until now are all made of one type of cells, which look like each other. iv. Example- Common Nettle. Advertisement - Continue Reading Below. It contains less amount of chlorophyll. All these cells coordinate to perform a common function. Answer. Complex Permanent Tissue : • Made up of more than one type of cells . There is a complete absence of intramolecular space between the cells. These tissues have lost the power of dividing either permanently or temporarily. Also, parenchyma cells stores food and provides support to plant. eg. It is hard so that it can provide rigidity to the bones. Bone contains connective tissue called osseous tissue, which is made up of two types of matrix materials. The simple tissues are parenchyma, sclerenchyma and collenchyma. The protophloem is short lived. The cells in permanent tissues are fully grown, bigger in size, and have a certain shape. The cell wall of parenchyma is made up of cellulose and consists of vacuoles and a nucleus. These are conducting tissues. The primary phloem elements that develop first from the procambium are smaller in size called the protophloem, whereas those develop later are larger in size called metaphloem. It is of three types - parenchyma, collenchyma and sclerenchyma. Tissue and Division of Labour: In complex organisms, different tasks are carried out by different organs and organ systems. Parenchyma consists of chlorophyll, that’s why it takes part in photosynthesis. Collenchyma is also a living tissue consisting of a thick cell wall that is made up of cellulose, water, and pectin. Plant tissues are broadly classified into meristematic tissues and permanent tissues. Permanent tissues are derived from the meristematic tissue. These glands contain either secretory or excretory products. Tissue. 13. The thickening is confined to the corners of the cells. The tissues which consist of glands are glandular tissues. At least four b. Simple Tissues – Simple permanent tissue made up of those permanent cells that is similar in structure, origin and function. They are spread over the mass of parenchyma cells in plants. There are three types of muscle tissue found in the human body- Cardiac muscle tissue, Smooth muscle tissues, and Skeletal muscle tissue. And possess large intercellular spaces step towards division of Labour in complex organisms, different are... 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