class 9 chapter 6 science
Answer: Apical meristem is found at the tip of root or shoot of the plant. Muscular tissue, 2. Name the two types of plant tissue. Stuck At Home? Answer: The types of simple tissues are parenchyma, collenchyma, sclerenchyma and aerenchyma. These extra important questions cover the entire chapter 6 from NCERT Textbooks. Functions of smooth muscles: (i) Smooth muscles do not work according to our will so they are also called involuntary muscles. Digital NCERT Books Class 9 Science pdf are always handy to use when you do not have access to physical copy. Collenchyma cells are compactly packed. The following are the features of the NCERT Solutions of this chapter. Give difference between striated muscles and unstriated muscles. Shreya was concerned that if the metal plate is fixed into tree many cells of the tree may get damaged. Tutorial for Learning C Programming: Is It Possible to Learn the Programming Language Online? How is Ch 6 Science Class 9 NCERT Solutions Useful? Due to this, plant can survive in scarcity of water in desert. Being a poor conductor of heat, it reduces heat loss from body i.e. Ideally, plants have more of dead tissues that offer them mechanical strength and support without much maintenance. What will happen to the plant and why? (a) Tissue that forms the inner lining of our mouth – The epithelial tissue, Squamous epithelium. It carries impulses away from the cell body. (b) Bone: Bone is a strong and not non-flexibility tissue. These NCERT solutions are available in chapter wise and students can also find answers to all the questions available in their Class 9 Science NCERT textbooks. Presence of which chemical in cork cells makes them impervious to water and gases? Lymph: Lymph carries digested fat and lot of white blood cells in the plasma. Why? (a) Which of the two onions has longer roots? 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(b) Collenchyma: Collenchyma tissue is also living. Give three features of cardiac muscles. This is because each cell type specialises in one particular function. These are—xylem and phloem. What are the functions of areolar tissue? Xylem fibres—Are supportive in function. (2) They are involuntary muscles. The layers of cells are arranged to prevent wear and tear. Functions of epithelial tissue: (i) Epithelial cells protects the underlying cells from drying, injury and chemical effects. Give three features of cardiac muscles. (a) Simple squamous epithelium: They are present in cells lining blood vessels or lung alveoli where transportation of substances occurs through a selectively permeable surface, there is a simple flat kind of epithelium. (c) What value of the family members is seen in the above case? Question 3. (b) Bone provide shape and skeletal support to the body. Question 4. Name the two types of tissues. Neurons are highly specialized for being stimulated and then transmitting the stimulus very rapidly from one place to another within the body. It is made up of four types of element: sieve tubes, companion cells, phloem fibres and the phloem parenchyma. Since they do not consume or need much energy, so most of the tissues of plants are supportive. Question 13. Question 3. The Sclerenchymatous tissue, which is a type of permanent tissue makes up the husk of the coconut. You will have the PDF on your device to study offline. What is a permanent tissue? As plants grow older the outer protective tissue undergoes certain change. For your convenience we have curated direct link to NCERT Book Class 9 Science so that you need not to keep search for it. (b) These cells are compactly arranged. Identify the type of tissue in the following: Skin, bark of tree, bone, lining of kidney tubule, vascular bundle. Answer: Question 1. (c) Why would tips stop growing in jar 2 after we cut them? Answer: When the cells have air-filled large cavities of parenchyma, it is called aerenchyma.
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