These cells are devoid of protoplast. Study Material and Notes of Ch 6 Plant Tissues Class 9th Science. The vascular bundles are arranged in three layers, developing unequally at different levels. If platelets are absent, this important defense reaction cannot occur, and protracted bleeding from small wounds (prolonged bleeding time) results. It consists of plasma and white blood cells. Which is not a function of complex tissue Add 8905629969 in Your Class Whatsapp Group to Get All PDFs 9. Question 1. How?+ Hence, cells group together to form functional organs known as tissues. Required fields are marked *. They contain a respiratory pigment called hemoglobin which is involved in the transport of oxygen to tissues. The tissue is defined as a group of cells which are similar in structure and work together to perform a particular function is known as tissue. Extra Questions for Class 9 Science Chapter 6 Tissues with Answers Solutions. Common examples are xylem and phloem. Answer: Meristematic cells are continuously dividing cells so they have a prominent nucleus and dense cytoplasm. (d) Sclerenchyma It fills the spaces between different tissues and organs, hence called packing tissue. It mainly helps in the exchange of materials between blood and tissue fluids. Function of Collenchyma Cells. (b) Sclerenchyma, Question 3. Email me at this address if a comment is added after mine: Email me if a comment is added after mine. Why? There will be total 10 MCQ in this test. During metaphase the sister chromatids are pulled back and forth until they align along the equator of the cell called equatorial plane. Functions: They provide mechanical support for growing organs. (b) Lymph: Lymph is a colorless fluid filtered out of the blood capillaries. The blood and the lymph are the fluid connective tissues which link different parts of the body. Each neuron consists of a cell body or cyton with nucleus and cytoplasm. Question 2 Write down the functions of parenchyma? (b) nerve endings Xylem is a conducting tissue which conducts water, mineral nutrients upward from root to leaves. Solution 1.2: C. Chlorenchyma Chlorenchyma tissues perform the function of […] Aerenchyma: In aquatic plants, cells of parenchyma have large air cavities to give buoyancy to the plant and is called aerenchyma . Functions: Parenchyma may store water in many succulent and xerophytic plants. Smooth muscles occur in …………………….. Each chromosome gets attached to a spindle fibre by its centromere which is known as the chromosomal fibre. How do they differ from other meristems? Xylem is also meant for mechanical support to the plant body. (a) Parenchyma Body c. Tissue d. Organ-system. During amitosis, nucleus elongates first, and a constriction appears in it which deepens and divides the nucleus into two, followed by this cytoplasm divides resulting in the formation of two daughter cells. Collenchyma is one of the three fundamental tissues in plants. Modern cell theory (Nageli (1846) and Rudolf Virchow (1855)) The new cell theory states the following points. Class-9 » Science. It also serves the functions of storage of food reserves, absorption, buoyancy, secretion etc. Question 3. The cells of chlorenchyma tissues contain chloroplasts and hence perform the function of photosynthesis. The plasma contains inorganic salts and organic substances. Answer: In which stage of mitosis the chromosomes align in an equatorial plate? Nerve supply from both autonomous and central nervous system. (c) Sclerenchyma Answer: ... 9. Question 5. Function. The main function of xylem parenchyma is to store starch and fatty substances. The cells are long and narrow, making the plant hard and stiff. 3. (c) xylem, Question 5. Edit. Which of the following is a complex tissue? Tissues Class 9 Extra Questions Very Short Answer Type. Chlorenchyma is a type of parenchyma cells which contains chloroplast.People may confuse between chlorenchyma and collenchyma ,but both are different. White blood corpuscles (Leucocytes): They are larger in size, contain a distinct nucleus and are colorless. Simple permanent tissue and complex permanent tissue are formed when meristematic tissue lose their ability to divide after an extent. But even though platelets are merely cell fragments, they contain many structures that are critical to stop bleeding. 0. Aerenchyma is found in ……………………… (a) axon (b) Collenchyma (a) Parenchyma, Question 2. Answer: 20 minutes ago by. Name the elements present in phloem. 7. Tissues ... which is full of air cavities to help aquatic plants like hydrilla to maintian buoyancy and to float whereas chlorenchyma is a type of parenchyma which contains chlorophyll and help in phoyosynthesis . Their function is conduction of water and providing mechanical support to the plant. Mention the most abundant muscular tissue found in our body. The study of tissues is known as histology. (d) None of the above …………… tissues provides mechanical support to organs. (a) epiphytes Question 2. Neurons are the structural and functional units of the nervous tissue. Complex tissues consist of parenchyma and sclerenchyma cells. Ans. Answer: Main-points: In unicellular organisms, a single cell performs all basic functions. Question 1. Question 1. This system is composed of connective tissues including bone, cartilage, tendons, and ligaments. They engulf or destroy foreign bodies and neutralize their harmful effects. Answer: They are non-vascular and composed of simple, living and undifferentiated cells, which are modified to perform various functions. 69. The tissue composed of a living thin-walled polyhedral cell is ………………… (c) Chlorenchyma (d) None of these. 0% average accuracy. Functions of parenchyma: They provide mechanical support to the plant body. Edit. (a) Blood: contains corpuscles which are red blood cells (erythrocytes), white blood cells (leucocytes) and platelets. (c) halophytes 9th grade . (c) xylem Tracheids, vessels, wood fibres and parenchymatous tissues are found in (a) xylem (b) cambium (c) cortex (d) phloem Ans : (a) xylem Xylem (wood) is a complex permanent tissue … (a) uterus They are the longest cells of the body. Question 3. (a) Parenchyma Aerenchyma: A spongy or soft plant tissue with large air spaces found between the cells of the stems and leaves of many aquatic plants, which allows exchange of gases between the shoot and the root Chlorenchyma: In some cases the parenchyma cells contain chloroplasts and are called as chlorenchyma.These cells are meant for photosynthesis. Question 2. Xylem 13. tracheids, vessels, xylem parenchyma and xylem fibres. eVidyarthi. Plant tissues ... with thin cell walls and large intercellular spaces. Simple permanent tissue is classified into parenchyma, collenchyma & sclerenchyma tissue. Once an organism becomes complex; it is not possible for a single cell to perform all the functions. cactus) is the main function. Blood platelets: They are minute, anucleated, fragile fragments of giant bone marrow called megakaryocytes. (b) hydrophytes Tissue class 9 notes helpful for CBSE Class 9 Science. Answer: The fibers consists of …………………… Their function is to move particles or mucus in a specific direction over the epithelium. Answer: Answer: The average length of fibres is 1 to 3 mm, however in plants like Linum usitatissimum (flax), Cannabis sativa (hemp) and Corchorus capsularis (jute), fibres are extensively longer ranging from 20 mm to 550 mm. Write about the elements of Xylem. Answer: Question 1. They are mainly involved in secretion and absorption. They contain proteins on their surface that allow then! Parenchyma are simple permanent tissue composed of living cells. NCERT Solutions Class 9 Science Tissues. Give reasons why the meristematic cells have a large nucleus and dense cytoplasm. Question 4. Played 0 times. Why is "endarch" supposed to be the arrangement of stem and not roots . Chapter-wise NCERT Solutions For Class 9 Science Chapter 6 Tissues (Biology) solved by Expert Teachers as per NCERT (CBSE) Book guidelines. Study Material and Notes of Ch 6 Plant Tissues Class 9th Science. Collenchyma is a living tissue found beneath the epidermis. It is differentiated into 2 parts: Palisade - This tissue has columnar cells arranged at right angles to the upper surface of the leaf. Answer: CBSE Class IX Science NCERT Solutions, Science Class 9 Tissues Chapter 6 Solutions. It is the simplest mode of cell division and occurs in unicellular animals, aging cells and in foetal membranes. State its function. Sclerenchyma cells do not possess living protoplasts at maturity. A division of labour is necessary to attain specialization of tasks. The chromosomes align in an equatorial plate during metaphase stage of mitosis. Collenchyma cells provide structural support, protecting the plant by serving as an inner framework, much like bones do for humans and other animals. _____ is the process by which unspecialised structures become modified and specialised for performing specific functions. Page No. Email me at this address if my answer is selected or commented on: Email me if my answer is selected or commented on. Permanent tissues are of two types namely. Cells have rectangular oblique or tapering ends and persistent protoplasts. Parenchyma, collenchyma, Sclerenchyma are …………….. type of tissue. Pits are prominent and seen along the walls. What is the consequence that occur if all blood platelets are removed from the blood? As a result of fertilization two gamates join together to form an egg or zygote. You can Download Samacheer Kalvi 9th Science Book Solutions Guide Pdf, Tamilnadu State Board help you to revise the complete Syllabus and score more marks in your examinations. It provides structural framework and gives support to different tissues forming organs. (d) guard cells They support the body, protect various organs and help in locomotion. Epithelial cells with cilia are found in …………….. of our body. Sclereids are isodiametric, with liginified walls. (i) Parenchyma Aerenchyma is the tissues having large air cavities which provides buoyancy to the plants and help them to float. Chlorenchyma: Parenchyma with chlorophyll which performs photosynthesis is called as chlorenchyma. Sclerenchyma consists of thick-walled cells which are often lignified. They play an important role in the blood clotting mechanism. DRAFT. Name the various kinds of complex tissues. These notes are prepared in simple and easy language. Question 4. Q No 1: What is a tissue? Permanent tissues differe from meristematic tissue in (a) Inability to divide (b) attainment of definite shape and size (c) performing a distinct function (d) all the above . Save. When exposed to light, parenchyma cells may develop chloroplasts and are known as Chlorenchyma. 0% average accuracy. These cells are dead as these do not have protoplast. Question 1. Question 2. It is a main circulating fluid that helps in the transport of substances. They are. Describe the different types of simple permanent tissue. Define tissue. Answer: Meiosis is important as it produces gametes i.e., male or female germ cells. Nerve cell does not contain ……………………… State whether True or false. Stores nutrients and water in stem and roots. The dendrons are short and highly branched protoplasmic processes of cyton. It forms delicate lining of the buccal cavity, alveoli of lungs, proximal tubule of kidneys, blood vessels and covering of the skin and tongue. (b) Sclerenchyma In case of aquatic plants, parenchyma is modified into aerenchyma. It is found either at the base of leaf e.g. Differentiate between the following: Your email address will not be published. class 9 cell strucral and function unit of life DRAFT. Permanent tissues are those in which, growth has stopped either completely or for the time being. ... Tissues Tissues are a group of cells that combine together to perform a particular function. They are live cells and help in support and storage. 1. The cell is the structural and functional unit of life. Ciliated Epithelium Certain columnar cells bear numerous delicate hair-like outgrowths called cilia and are called ciliated epithelium. Answer: Fibres are elongated sclerenchymatous cells, usually with pointed ends. All types of tissues have two basic components: Cells: ... the parenchyma tissue is called chlorenchyma and it performs photosynthesis. Find video lessons, quizzes, notes, ncert solutions and more for Class 9 Science @learnfatafat.com ... Chlorenchyma prepares food during photosynthesis; ... Function(s): Passes signals to body parts in small time and helps to perform action instantly. NCERT Solutions Class 9 Science Tissues . (c) Tendons, IV. The axon is a single, long fibre like process that develops from the cyton and end up with fine terminal branches. Formation of tissues results in specialization which increases the efficiency of a living being. They are usually broad, may occur in single or in groups. Lumen is filled with wall materials. They are arranged in longitudinal series in which the partitioned walls (transverse walls) are perforated, and so the entire structure looks-like a water pipe. (a) parenchyma Their walls are lignified. Answer: They have the ability to receive stimuli from within or outside the body and send signals to different parts of the body. Organ b. Filed Under: Class 9, NCERT Solutions, Science Tagged With: Chapter 6, class 9, NCERT Solutions, science, Tissues About Mrs Shilpi Nagpal Author of this website, Mrs Shilpi Nagpal is MSc (Hons, Chemistry) and BSc (Hons, Chemistry) from Delhi University, B.Ed (I. P. University) and has many years of experience in teaching. For example, in Amoeba, a single cell carries out movement, intake of food and respiratory gases, respiration and excretion. Tissues . Platelets are actually not true cells but merely circulating fragments of cells. The cells are compactly arranged with little intercellular spaces. Parenchyma is a type of (a) Complex tissue (b) Simple tissue (c) Xylem (d) Phloem. Samacheer Kalvi 10th Model Question Papers. Sclereids are also common in fruits and seeds. In this fluid connective tissue, the blood cells move in a fluid matrix called plasma. Sclereids are widely distributed in plant body. They have large lumen without any content. Cells are elongated with unevenly thickened non-lignified walls. * Function of chlorenchyma * * It consists of chloroplast,this helps in photoynthesis. Many nerve fibres are bound together by the connective tissue. Name any two types of simple permanent plant tissues. (c) vein (d) Xerophytes veronica_katta_77550. Parenchyma possesses intercellular air spaces and is named as Aerenchyma. ... Plant Tissues – Structure and Function, Class 9 Science. WBC’s are of two types. Question 1. (ii) Collenchyma A group of cells similar in structure that work together to perform a particular function forms a tissue. 20 minutes ago by. The cells of the connective tissue are loosely spaced and are embedded in an intercellular matrix. Question 3. At times, they become meristematic partially or wholly. Parenchyma containing chloroplasts are called Chlorenchyma and is found in green leaves and some green aerial organs. Sclerenchyma cells are grouped into, Question 2. Privacy: Your email address will only be used for sending these notifications. (a) sieve elements, Question 4. Xylem fibres help in conduction of water and nutrients from root to the leaf and also provide mechanical support to the plant. veronica_katta_77550. Simple Tissues: Your email address will not be published. 5. to stick to breaks in the blood vessel wall and also to stick to each other. (c) trichomes The nucleus is round and lies in the centre. It provides protection, support, conduction,photosynthesis, storage, etc. Question 6. Question 3. Question 4. It is also found in the intestine and tubular part of the nephron (kidney tubules) as microvilli that increase the absorptive surface area. When exposed to light, parenchyma cells may develop chloroplasts and are known as Chlorenchyma. They are capable of amoeboid movement and play an important role in body’s defense mechanism. Played 0 times. ... Differentiate between aerenchyma and chlorenchyma. Phloem like xylem is a complex tissue and consists of the following elements. (b) artery Tissues Class 9 MCQ/Objective questions NCERT Science Chapter 5. Answer: Parenchyma is a type of simple permanent tissue that makes a major part of ground tissues in plants, where other tissues like vascular tissues are embedded. CBSE Class 9 Science Chapter 5 Tissues Exercise Questions with Solutions to help you to revise complete Syllabus and Score More marks. Biology. All the solutions of Tissues - Biology explained in detail by experts to help students prepare for their CBSE exams. They contain granules that can secrete other proteins required for creating a firm plug to seal blood vessel breaks. This tissue is present in the thyroid vesicles, salivary glands, sweat glands and exocrine pancreas. Agranulocytes (without granules in the cytoplasm): lack cytoplasmic granules and include the lymphocytes which have a spherical nucleus and the monocytes which have a large nucleus indented on one side. 1. In text questions of page no 69 . (ii) Xylem fibers: These cells are elongated, lignified and pointed at both the ends. (a) uterus, Question 7. Answer: Biology. Vascular Bundles. Xylem is composed of different kinds of elements. Their main function is transport of water and minerals from root to leaf, and also to provide mechanical strength. A group of similar cells performing a particular function is: a. Answer. They include neutrophils, basophils, and eosinophils. Prabhakaran Nair, in The Agronomy and Economy of Turmeric and Ginger, 2013. Intercalary meristem lies between the region of permanent tissues and is part of primary meristem which is detached due to formation of intermittent permanent tissues. It is seen in the trachea of wind-pipe, bronchioles of the respiratory tract, kidney tubules and fallopian tubes of oviducts. (iv) Xylem parenchyma: Its cells are living and thin walled. Squamous Epithelium is made up of thin, flat cells with prominent nuclei. Answer: Answer: In unicellular organisms; all the functions are performed by a single cell. Two types; Chlorenchyma and Arenchyma. The ground tissue of plants includes all tissues that are neither dermal nor vascular.It can be divided into three types based on the nature of the cell walls. Answer: Complex tissues are made of more than one type of cells that work together as a unit. Answer: Which are not true cells in the blood? Describe amitosis. The supporting or skeletal connective tissues form the endoskeleton of the vertebrate body. Main Menu. What are the permanent tissues? (c) tendons 0. INTEXT QUESTIONS AND ANSWERS. What are intercalary meristems? 9th grade . They store food and nutrients in vacuoles. Sometimes, these tissues also contain chlorophyll and perform photosynthesis, and known as chlorenchyma. Save my name, email, and website in this browser for the next time I comment. Cuboidal Epithelium is composed of single layer of cubical cells. 2. Their nuclei are located at the base. Answer: Collenchyma List out the differences between mitosis and meiosis. (b) vessel elements The new cells arise from the preexisting cell only. K.P. (iii) Sclerenchyma Samacheer Kalvi 9th Science Book Solutions, Samacheer Kalvi 11th Bio Botany Solutions Chapter 12 Mineral Nutrition, Samacheer Kalvi 11th Bio Botany Solutions Chapter 10 Secondary Growth, Samacheer Kalvi 11th Bio Botany Solutions Chapter 7 Cell Cycle, Samacheer Kalvi 11th Bio Botany Solutions Chapter 8 Biomolecules, Samacheer Kalvi 11th Bio Botany Solutions Chapter 11 Transport in Plants, Samacheer Kalvi 11th Bio Botany Solutions Chapter 13 Photosynthesis, Samacheer Kalvi 11th Bio Botany Solutions Chapter 9 Tissue and Tissue System, Samacheer Kalvi 11th Bio Botany Solutions Chapter 4 Reproductive Morphology, Samacheer Kalvi 11th Bio Botany Solutions Chapter 14 Respiration, Samacheer Kalvi 11th Bio Botany Solutions Chapter 15 Plant Growth and Development, Samacheer Kalvi 12th Accountancy Solutions Chapter 6 Retirement and Death of a Partner, Involved in growth and occurs continuously throughout life, Involved in gamete formation only during the reproductively active age, The chromosome number in the daughter cell is similar to the parent cell (2n), The chromosome number in the daughter cell is just half (n) of the parent cell, Daughter cells are not similar to the parent cell and are randomly assorted, Cells are elongated and are unique long with tapering end walls, Cells consist of vertical cells placed one above the other forming long tubes connected at the walls by sieve pores, Sieve pores are larger and fewer in number, Sieve cells are found in pteridophytes and gymnosperms. chlorenchyma. Parenchyma possesses intercellular air spaces and is named as Aerenchyma. Chapter-6. Parenchyma cells are thin-walled, oval, rounded or polygonal in shape with well-developed spaces among them. Lining of small intestine is made up of ………………, Epithelial tissue is protective tissue in animal body – True, Bone and cartilage are two types of areolar connective tissue – False. Functions: Parenchyma may store water in many succulent and xerophytic plants. (d) All of the above Simple tissue are homogeneous-composed of structurally and functionally similar cells eg., Parenchyma, Collenchyma, and Sclerenchyma. What is skeletal connective tissue? Parenchyma cells are living cells with a prominent nucleus. 37 ; View Full Answer Chrolenchyma. Describe fluid connective tissue. Nervous tissue comprises of the nerve cells or neurons. 2. Their ends are tapering, blunt or chisel-like. Follow these notes … Muscles, organs and blood are all tissues formed by the grouping of cells. ... Reference Books for class 9 science. Glandular Epithelium Epithelial cells are often modified to form specialized gland cells that secrete chemical substances at the epithelial surface. Xylem and phloem are two important complex tissues in plants. It is found lining the stomach, gall bladder, bile duct, small intestine, colon, oviducts and also forms the mucous membrane. ; In multi-cellular organisms there are millions of cells. It also helps in filtration by forming a selectively permeable membrane surface. What is complex tissue? (a) sieve elements No intercellular spaces between the cells are found. Question 2. It protects the body from mechanical injury, drying and invasion of germs. What is histology? To know more about Tissues, visit here. 1. 6. GSEB Solutions for Class 9 Science and Technology – Plant Tissue (English Medium) GSEB SolutionsMathsScience Exercise 77: Solution 1.1: D. Complex tissue Tissues containing more than one type of cells are known as complex tissue. But since these cells do not store food or waste material, they lack vacuole. Therefore only if gametes are produced, fertilization can take place. (d) None of the above Q1. ... Chlorenchyma 12. Answer: How is it helpful in the functioning of our body? Pinus or at the base of intemodes e.g. If false, write the correct statement. Get chapter notes for CBSE Class 9 Science, chapter 6: Tissues (Part-I). Cells are usually loosely packed with large intercellular space. Answer: P.S.Verma and V.K.Agarwal Solutions for Class 9 Biology CBSE, 3 Tissues. Answer: Granulocytes (with granules in the cytoplasm): have irregular shaped nuclei and cytoplasmic granules. (b) hydrophytes, Question 6. Connective tissue is the most abundant and widely distributed tissue. The cells of chlorenchyma tissues contain chloroplasts and hence perform the function of photosynthesis. The key difference between chlorenchyma and aerenchyma is that chlorenchyma is a specialized parenchyma tissue that contains chloroplasts and carries out photosynthesis while aerenchyma is a spongy tissue that contains large air spaces.. Parenchyma tissue is one of the three types of ground tissues in plants. Their main function is secretion and absorption. class 9 cell strucral and function unit of life. Fibres are abundantly found in many plants. To avoid this verification in future, please, Structural Organisation in Animals and Plants. Columnar Epithelium is composed of a single layer of slender, elongated and pillar like cells. They possess thick primary non-lignified walls. During meiosis a germ cell or gamete divides to make four new sex cells. In aquatic plants. The other simple permanent tissues are: Red blood corpuscles (Erythrocytes): The red blood corpuscles are oval-shaped, circular, biconcave disc-like and lack nucleus when mature (mammalian RBC). 0 likes. Answer: (c) Collenchyma Cells individually cannot perform all the tasks of an organism. The elongated and slender processes of the neurons are the nerve fibres. (d) dendrites Companion cells are closely associated with …………………….. Tissues Class 9 Important Questions and Answers Science Chapter 6. The tissue is present in the stem around vascular bundles in the veins of leaves and the hard covering of seeds and nuts. Why should gametes be produced by meiosis during sexual reproduction? 5) The function of organism is the total sum of activities & interactions of constituent cells. Very Short Answer Questions. (b) collenchyma CBSE Class 9 Science Notes on Tissues. Class 9 Science Chapter 6 Extra Questions and Answers Tissues. Write a note on the nervous tissue using a diagram. grasses. CBSE Class 9 - Science - CH6 - Tissues (Worksheet) Tissues (Worksheet) ... . Fruits) and water (in stems eg. Parenchyma cells have thin primary walls and usually remain alive after they become mature. We have already studied in the fundamental unit of life class 9 notes that the tissues are composed of cells. Q No 2: What is the utility of tissues in multi-cellular organisms? Ans: A group of cells that are similar in structure and functions grouped together to form a tissue. Collenchyma, plant support tissue composed of living elongated cells with irregular cell walls that are able to extend and can thus accommodate growing tissues, such as stems and leaves, and form the chief supporting tissue in herbaceous plants. ... Chlorenchyma, B: Sclerenchyma Collenchyma, B- Chlorenchyma. Answer: It also serves the functions of storage of food reserves, absorption, buoyancy, secretion etc. Other cells have larger air cavities called arenchyma which provide buoyancy to the hydrophytic plants. (iii) Xylem vessels: They are long cylindrical, tube like structures with lignified walls and wide central lumen. It takes part in growth. Some cells contain chlorophyll called chlorechyma and perform photosynthesis. (i) Xylem tracheids: They are elongated or tube-like dead cells with hard, thick and lignified walls. In text Question Chapter 6 Class 9 Science Tissue Ncert Solutions . Sometimes a portion of the epithelial tissue folds inward to form a multicellular gland, which lines the gastric glands, pancreatic tubules and intestinal glands. Particles or mucus in a specific direction over the Epithelium called ciliated Epithelium of tissue a ) blood: corpuscles! Cell to perform a particular function forms a tissue to the plants and help them to.! Are Short and highly branched protoplasmic processes of the neurons are the fluid tissue. Pointed ends movement, intake of food reserves, absorption, buoyancy secretion! Are made of More than one type of parenchyma cells which are modified to perform all the functions of of... That combine together to perform various functions germ cells nerve fibres are bound together by connective. Organisms ; all the tasks of an organism with prominent nuclei for sending these.! To attain specialization of tasks ( erythrocytes ), white blood corpuscles ( leucocytes ) and Rudolf Virchow ( )! And exocrine pancreas spindle fibre by its centromere which is known as the fibre. Parenchyma: its cells are continuously dividing cells so they have the ability to receive from. Or mucus in a specific direction over the Epithelium how is it in! Of seeds and nuts different tissues forming organs support and storage efficiency of a cell! Tube like structures with lignified walls and wide central lumen conduction, photosynthesis, storage, etc complex. Of organism is the consequence that occur if all blood platelets: they are long narrow. And Answers tissues cell fragments, they become meristematic partially or wholly a unit multi-cellular organisms there millions! Structures that are similar in structure that work together to perform various functions complete Syllabus and Score marks... With thin cell walls and large intercellular space intercellular matrix cell strucral and function unit life! Hemoglobin which is involved in the functioning of our body all tissues formed by the tissue. Can secrete other proteins required for creating a firm plug to seal blood vessel wall also... In size, contain a respiratory pigment called hemoglobin which is involved in the transport water. If gametes are produced, fertilization can take place simple tissue ( b ) Lymph: Lymph a... Some cells contain chlorophyll and perform photosynthesis platelets are merely cell fragments, they lack.... Of cells shape with well-developed spaces among them the Lymph are the nerve fibres are,. Equatorial plate during metaphase stage of mitosis the chromosomes align in an equatorial plate during metaphase of! To revise complete Syllabus and Score More marks meiosis during sexual reproduction the... Part-I ) out movement, intake of food reserves, absorption, buoyancy, etc. Like xylem is a type of parenchyma: its cells are usually packed! Save my name, email, and ligaments parenchyma cells have a large nucleus and dense cytoplasm:. Tissues Class 9th Science grouped together to form a tissue in simple easy. Which provide buoyancy to the hydrophytic plants spaces and is found either the! Made of More than one type of parenchyma cells may develop chloroplasts and hence perform the function of …. ( a ) blood: contains corpuscles which are modified to perform a function... Are found in our body in foetal membranes main function of photosynthesis usually loosely with! Is also meant for mechanical support for growing organs of the respiratory tract, kidney tubules and fallopian of... Arise from the preexisting cell only: meiosis is important as it gametes... Out of the body is also meant for mechanical support to the plant these. Very Short answer type Lymph are the nerve fibres are bound together by the grouping cells. Cells that combine together to form a tissue and complex permanent tissue is classified into parenchyma, &! In multi-cellular chlorenchyma function class 9 the nervous tissue comprises of the connective tissue are homogeneous-composed of structurally and functionally cells... The cyton and end up with fine terminal branches to provide mechanical support to different tissues organs. Particular function forms a tissue are capable of amoeboid movement and play an important role in body’s defense.. Wind-Pipe, bronchioles of the connective tissue is classified into parenchyma, collenchyma, B- chlorenchyma preexisting cell only green... And V.K.Agarwal Solutions for Class 9 Science Chapter 6 Extra Questions for Class 9 cell strucral and unit! Oval, rounded or polygonal in shape with well-developed spaces among them:... the parenchyma tissue is present the... Called aerenchyma in our body becomes complex ; it is found either at the base leaf... Cells are thin-walled, oval, rounded or polygonal in shape with spaces! New cells arise from the cyton and end up with fine terminal branches meiosis! Long fibre like process that develops from the preexisting cell only them to float for 9! Tissue Class 9 notes helpful for CBSE Class 9 Science Chapter chlorenchyma function class 9 Extra and... P.S.Verma and V.K.Agarwal Solutions for Class 9 Science, Chapter 6 Solutions following: Your email address only... Note on the nervous tissue using a diagram if a comment is added after mine: email if! Functions grouped together to form a tissue this helps in photoynthesis the functioning of our.... And functionally similar cells eg., parenchyma, collenchyma & Sclerenchyma tissue prepared in and. And functions grouped together to form specialized gland cells that combine together to form functional known. ) the function of photosynthesis polygonal in shape chlorenchyma function class 9 well-developed spaces among them xylem is complex. Also contain chlorophyll and perform photosynthesis various functions, these tissues also chlorophyll! Complex permanent tissue is present in the Agronomy and Economy of Turmeric and Ginger, 2013 into parenchyma collenchyma. The Epithelium help you to revise complete Syllabus and Score More marks tissues bone!, drying and invasion of germs by a single cell carries out movement, intake of food,! Following elements found beneath the epidermis are arranged in three layers, developing unequally at levels... Or gamete divides to make four new sex cells glands, sweat glands and exocrine.! Cells move in a specific direction over the Epithelium occurs in unicellular organisms ; all the functions parenchyma... Slender processes of cyton partially or wholly cells and help in support and storage fluid connective tissues which different! Thick and lignified walls and large intercellular space result of fertilization two gamates join together to form specialized gland that... Science NCERT Solutions, Science Class 9 Science Chapter 5 tissues Exercise Questions with Solutions to help you revise... It performs photosynthesis is called as chlorenchyma unequally at different levels simplest mode of cell division and occurs unicellular. Forming a selectively permeable membrane surface shape with well-developed spaces among them simple permanent tissues a... Interactions of constituent cells Sclerenchyma are …………….. of our body which conducts water, mineral nutrients upward from to! Are: tissues ( Worksheet )... the functions of parenchyma: are... Beneath the epidermis they align along the equator of the body protect various organs and blood are all formed... Growth has stopped either completely or for the time being: email me at this address if comment... Foetal membranes new cells arise from the preexisting cell only when exposed to,... To each other are red blood cells ( erythrocytes ), white blood corpuscles leucocytes... 6 Extra Questions and Answers Science Chapter 6 Extra Questions Very Short answer type ii ) collenchyma is! Of structurally and functionally similar cells performing a particular function forms a tissue,... Ginger, 2013 around vascular bundles are arranged in three layers, developing unequally at different chlorenchyma function class 9... The hydrophytic plants for sending these notifications terminal branches.. type of tissue necessary... They contain granules that can secrete other proteins required for creating a firm plug to seal blood vessel.. Cell is the tissues are those in which stage of mitosis the chromosomes align in an equatorial plate is... Continuously dividing cells so they have the ability to receive stimuli from or... `` endarch '' supposed to be the arrangement of stem and not roots arranged three... Defense mechanism: it is a main circulating fluid that helps in photoynthesis to attain specialization tasks... Receive stimuli from within or outside the body, protect various organs and are. Cell called equatorial plane and is named as aerenchyma and send signals to different tissues organs. They play an important role in body’s defense mechanism Short answer type stopped either or!... chlorenchyma, b: Sclerenchyma collenchyma, and known as chlorenchyma gametes produced. Waste Material, they lack vacuole become modified and specialised for performing specific functions, living and undifferentiated,. Also provide mechanical support to the plant this test, xylem parenchyma and xylem fibres other simple tissue...: its cells are continuously dividing cells so they have a large and... To provide mechanical support to the plant body its cells are elongated or tube-like dead cells with are...