CBSE Class 9 Science Chapter 5 Tissues Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. Extra Questions for Class 9 Science Chapter 6 Tissues with Answers Solutions. Page 73. Content: Parenchyma in Plants. Medullary parenchyma: Ø Medullary parenchyma occurs in the medullary ray of primary vascular tissue of stem.. Ø They are radially elongated cells with very thin walled cells.. Ø They allow radial condition of water and minerals. Eg pericylce. Parenchyma and Sclerenchyma Tissues Parenchyma Tissue. → In typical parenchyma chlorophyll is absent. Free Botany- Plant Anatomy PPT (Power Point Presentation): Structure, Classification and Characteristics of Parenchyma in Plants. Parenchyma tissues are found in the soft parts of plant such the roots, stems, leaves and flowers. The cells in this tissue are loosely packed, as they contain large intercellular spaces between them. → In hydrophytic plants aerenchyma (a type of parenchyma containing air spaces) provides buoyancy. Parenchyma tissue is the most abundant type of tissue in plants. Parenchyma is a term used to describe the functional tissues in plants and animals. (6). CBSE Ncert Notes for Class 9 Biology Tissues. ii. Functions of parenchyma are as follows: • It serves as food storage tissue. The parenchyma also acts as a storage tissue for food, air and water. Question 1. i. Prosenchyma: it is long and tapering parenchymatous cell present in some plants. It forms the major bulk of stem, roots, leaves, fruits and seeds. • This tissue provides support to plants. Parenchyma, in plants, tissue typically composed of living cells that are thin-walled, unspecialized in structure, and therefore adaptable, with differentiation, to various functions. (ii) Collenchyma Conjunctive parenchyma: Ø They form the conjunctive tissue of the stele of roots. Name any two types of simple permanent plant tissues. These are dead and thick walled cells. Class 9 Science Chapter 6 Extra Questions and Answers Tissues. (5). The cells consist of cytoplasm and nucleus that is surrounded by a cell wall. • When the parenchyma cell contains chlorophyll in some situations, it performs photosynthesis. The cells provide mechanical support to the plant body. This tissue is “functional” – performing tasks such as photosynthesis in plants or storing information in the human brain – as opposed to “structural” tissues like wood in plants or bone in animals.. Parenchyma may be compact or have extensive spaces between the cells. Types of parenchyma tissue. The tissue is composed of living cells, with various shapes, sizes and functions. Definition; Types; Characteristics; Structure; Functions; Definition of Parenchyma tissue. Answer: Simple permanent tissues are of three types: (1) Parenchyma (2) Collenchyma (3) Sclerenchyma. Parenchyma Definition. Xylem is the water conducting element (transportation of water) … Different types of tissues perform different function.It is because of this division of labour that multicellular organisms are able to perform all functions efficiently. Ø They can also store starch grains. Chapter-wise NCERT Solutions For Class 9 Science Chapter 6 Tissues (Biology) solved by Expert Teachers as per NCERT (CBSE) Book guidelines. XYLEM. Name types of simple tissues. Chlorenchyma and Aerenchyma 1. Such type of parenchyma tissue is called chlorenchyma. → Parenchyma provides turgidity to cells. Tissues Class 9 Extra Questions Very Short Answer Type. 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