Question 1 in NCERT Solutions class 9 Science Chapter 6. (5) Blood (6) Nervous tissue, Question 11. 1. (v) Some cells contain chlorophyll called chlorenchyma and perform photosynthesis. What are the various types of blood cells? Question 2 in NCERT Science Class 9 Chapter 6. Name them. Location: Nervous tissue are present in brain, spinal cord and nerves. Answer: Phloem is made up of four types of elements sieve tube, companion cells, phloem fibres and phloem parenchyma. (ii) The dendrites: These are short processes arising from the cyton. (ii) Smooth muscles contract slowly but can remain contracted for a long period of time. 2. Students can refer to these study materials and score good marks in their board examination. The cells are derived from meristematic tissue and do not divide. Example, jute fibre. Observe the various types of cells and their arrangement. Movement of food in the alimentary canal or the contraction and relaxation of blood vessels are involuntary movements. Other cells have large air cavities called aerenchyma which provide buoyancy to the hydrophytic plants. What is the role of epidermis in plants? Answer: The outermost layer of the cell is called epidermis and is very porous. Plants and animals are two different types of organisms. How are simple tissues different from complex tissues in plants? Class 9 Science NCERT Book NCERT Solutions. Stuck At Home? (iii) Blood is a ……………. 0.1 Name a plant tissue having dead cells. The cells are variable in shape and size. What is the utility of tissues in multicellular organisms? Identify the type of tissue in the following: Skin, bark of tree, bone, lining of kidney tubule, vascular bundle. The cells of this tissue are dead and their cell walls are thickened because of the presence of lignin. The phloem constitutes of the following four elements, they are: 7. Digital NCERT Books Class 9 Science pdf are always handy to use when you do not have access to physical copy. Class 9 Science Chapter 6 Extra Questions Answers are important for the preparation of school tests as well as final exams. It carries impulses away from the cell body. NCERT Solutions for Class 6, 7, 8, 9, 10, 11 and 12. Answer: Question 2. Answer: Structure: Nervous tissue consists of cells called nerve cells joined end to end (neurons). They prepared metal plates with names carved on it, to fix it on the plant trunks. The muscles which do not move on our will are called involuntary muscles. The tissue consist of localised thickening in their cell walls. It fills the space inside the organs, supports internal organs and helps in the repair of tissues. NCERT Book for Class 9 Science Chapter 6 Tissues is available for reading or download on this page. The epidermis has thick cuticles and waxy substance to prevent the invasion of parasites. Function of stomata: (a) Necessary for exchanging gases with the atmosphere during photosynthesis and respiration. (iii) It fixes skin to underlying muscles. If you are a student searching for the NCERT solutions Class 9 Science Chapter 6, ‘Tissue’, then you have clicked on the right page. This is because since the root tips are cut, the roots won’t grow because of absence of meristematic tissue. Answer: Xylem consists of tracheids, vessels, xylem parenchyma and xylem fibres. Answer: (a) Skin—Striated squamous epithelium Class 9 Science Chapter 6 Important Questions of Tissues with answers and explanation. NCERT Books Class 9 Science: The National Council of Educational Research and Training (NCERT) publishes Science textbooks for Class 9.The NCERT Class 9th Science textbooks are well known for it’s updated and thoroughly revised syllabus. These tissues causes the plant to become stiff and hard. Question 1. The covering or protective tissue in the animal body are epithelial tissues. Functions: (a) It acts as a supporting and packing tissue between organs lying in the body cavity. (ii) It provides skeletal support to the body. It is made up of single cell layer. Throughout one’s lifetime, the cardiac muscles bring about the rhythmic contraction and relaxation. What are involuntary muscles? Answer: Intercalary tissue. Muscular tissue, 2. NCERT Solutions for Class 9 – Latest Maths, Science, English, Hindi, Social Science, NCERT Solutions for Class 9 English – Beehive & Moments Supplementary Reader, NCERT Solutions for Class 9 Social Science, NCERT Book Class 9 Science Chapter 7 Diversity in Living Organisms. (ii) Tissues are made up of dead cell. (d) Cuboidal epithelium: These form the lining of the kidney tubules and ducts of salivary glands where these provide mechanical support. It is a conducting tissue. It acts as insulator due to fat storage. Areolar connective tissue: It is found between the skin and muscles, around blood vessels and nerves and in the bone marrow. Answer: Tissues provide structural strength, mechanical strength, show division of labour. (b) Tissue that connects muscle to bone in humans. Complex permanent tissue. What does a neuron look like? Required fields are marked *. Here, in this study material, students can find detailed explanations for all the topics and are explained in a simple language, along with the examples, diagrams, flowchart in a more accessible format. Question 2. Explain the “complex tissue” of plants. Answer: Question 16. And for the proper working of an organism many functions like food transport, immunity, strength etc., are needed to be performed properly. (iii) It anchors the muscles. (v) The cells are long and narrow make the plant hard and stiff. These NCERT solutions are prepared by a team of our subject experts to help students of Class 9 in their preparations and to have a good foundation on the subject. How many types of elements together make up the xylem tissue? The solution sheet covers both Plant and Animal tissue and their types. Question 7. Rewrite the answer if (F). Tracheids and vessels—Allows the transport of water and minerals. They are long and cylindrical muscle fibers. Answer: (a) On the outer layer of the tree trunk/bark all thick layer of dead cells is present which acts as protective tissue. • Add a few drops of safranin. What are the functions of areolar tissue? Your email address will not be published. (3) They are involuntary muscles, cannot be controlled by us. Question 17. Answer: Simple tissues are made up of one type of cells which coordinate to perform a common function. They are involuntary and present in skeletal tissues,, help in movement of body and bones. We wish you all the very best for your preparations. Give difference between ligament and tendon. Question 11. An individual nerve cell is called neuron, it may be up to a metre long. This is because each cell type specialises in one particular function. What are the functions of cuboidal epithelium? It also transports food, water to different parts of the body and connects them. Question 5. Question 5. It supports internal organs and helps in repair of tissues. (b) Lymph: Lymph is a colourless fluid that has been filtered out of blood capillaries. Name all different types of tissues present in animal. Question 1. How are simple tissues different from complex tissues in plants? All these cells are connected due to plasma. The skin, the lining of the mouth, the lining of blood vessels, lungs alveoli and kidney tubules are all made of epithelial tissue. ‘ Water hyacinth floats on water surface. Question 14. Moreover, plants are stationary or field organisms. These muscles are also called as smooth muscles. Answer: Complex tissues are made up of more than one type of cells. Plasma is a fluid and cells like red blood cells, white blood cells and platelets are present in it. We cannot start or stop them from working by our desire. Solution - In the second question students will have to write the utility of tissues in multi-cellular organisms. Which tissues are present at the nodes of the plants? 12. Sieve tubes are tabular cells with perforated walls. Question 8. On aerial parts, epidermis secretes waxy, water-resistant layer on their outer surface. (b) The roots did not continue to grow in jar 2 after cutting down their tips. Answer: (i) Xylem (ii) Phloem 2. Answer: Plant tissues consist of two main types of tissue. Question 20. Visible intercellular spaces are present. Sclerenchyma: They provide strength and flexibility to the plants. (d) Nervous tissue consists of nerve cells and are present in the nervous system. (a) What type of cells are present on the outer layer of the bark/tree trunk? These tissues are fibrous, flexible and with lot of strength. These cells have a number of nuclei called sarcolemma. Question 12. They are uninucleated and are involuntary in nature. The epidermis in plants forms an uninterrupted and continuous layer that has no intercellular spaces. The tissue is present in the stem around vascular bundles in the veins of leaves and the hard covering of seeds and nuts. Give reasons: (a) Meristematic cells have a prominent nucleus and dense cytoplasm but they lack vacuole. What are the functions of stomata? Class 9 Science Chapter 6 Extra Questions Answers are important for the preparation of school tests as well as final exams.