Solution - In the second question students will have to write the utility of tissues in multi-cellular organisms. We cannot start or stop them from working by our desire. The solution sheet covers both Plant and Animal tissue and their types. Functions: (a) Blood transports nutrients, hormones and vitamins to the tissues and transports execratory product from the tissues to the liver and kidney. We will never display your number to other users. Each neuron has a single long part called the axon, and many small, short branched parts called dendrite. The adipose tissue is abundant below the skin, between the internal organs and in the yellow bone marrow. Identify the type of tissue in the following: Skin, bark of tree, bone, lining of kidney tubule, vascular bundle. Answer: The 3 different types of meristematic tissue are: List the characteristic of cork. (2) They are voluntary muscles. Question 13. (c) The family members showed the value of being caring, responsible, dutiful and kind. How are they formed? What is the role of epidermis in plants? A single neuron can even be a meter long. (3) The cells are long, cylindrical with many nucleus and are unbranched. Answer: Plant tissues and animal tissues. What are the functions of cuboidal epithelium? Answer: The simple tissues of plants are: Answer: Feature of cardiac muscles Example are cardiac muscles and smooth muscles. But since these cells do not store food material or wastes materials they lack vacuole. Answer: It is present at the growing tips of stem and root, it increases the length of the stem and roots. Blood flows all over the body and helps in the transport of gases, digested food, hormones and waste material to different parts of the body. The plasma contains proteins, salts and hormones. Students who are in Class 9 or preparing for any exam which is based on Class 9 Science can refer NCERT Science Book for their preparation. Answer: (a) Skin—Striated squamous epithelium Define aerenchyma. (i) It helps in repair of tissues after an injury. Your email address will not be published. All these coordinate to perform a common function. For a better understanding of this chapter, you should also see Chapter 6 Tissues Class 9 notes , Science. Also after the chapter you can get links to Class 9 Science Notes, NCERT Solutions, Important Question, Practice Papers, etc. Answer: Complex tissues are made up of more than one type of cells. Phloem transports food from leaves to other parts of the plant. If you are a student searching for the NCERT solutions Class 9 Science Chapter 6, ‘Tissue’, then you have clicked on the right page. Required fields are marked *. (c) Tissue that transports food in plants. (3) They are spindle in shape and have single nucleus. Tracheids and vessels helps in water transportation, parenchyma stores food and helps in the sideways conduction of water and fibres are mainly supportive in function. (a) Epithelial tissue present on the outer and inner lining of the body. (b) Sclerenchyma cells have lignified cell walls which make them compact and leave no intercellular spaces. (iii) Connective (iv) Osteocyte Complex tissues are made up of more than one type of cells. Question 4. Answer: Meristematic tissue and permanent tissue. Question 1. What are responsible for contraction and relaxation in muscles? These muscles occur in muscles of limbs, body wall, face, neck etc. (c) Why would tips stop growing in jar 2 after we cut them? (v) Cartilage consists of………………..cells. Write a short note on the epithelial tissue. (b) Lateral tissue—sides of stem What are tracheids? Why are voluntary muscles also called skeletal muscles? Give the functions of cartilage. As plants grow older the outer protective tissue undergoes certain change. 2. Each neuron has the following three parts: (i) The cyton or cell body: It contains a central nucleus and cytoplasm with characteristic deeply stained particles, called Nissl granules. Answer: There are four main types of tissues present in animal. Answer: Structure: Nervous tissue consists of cells called nerve cells joined end to end (neurons). (d) The branches of a tree have collenchyma cells which provide tensile strength to plant parts. (ii) Tissues are made up of dead cell. (iii) Blood is a ……………. Other interesting topics explained in this chapter include, types of tissues in multicellular organisms, their structure, location and their functions. 1. Throughout one’s lifetime, the cardiac muscles bring about the rhythmic contraction and relaxation. Question 1. (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? Write a note on plant tissues. Xylem mainly consists of dead cells (except xylem parenchyma). It is disturbed in almost all the parts of the plant body. This forms the several layer thick cork or the bark of the tree. • Wait for a couple of minutes and then transfer it onto a slide. Describe the types of connective tissues along with their functions. 6. Answer: Epidermis forms the entire outermost layer of the plant. In leaves, epidermis consists of small pores called stomata. Answer: (i) Xylem (ii) Phloem (b) Bone: Bone is a strong and not non-flexibility tissue. 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. Impulses are the passage of electrical activity along the axon of a nerve cell. What is neuron? (a) Are all cells similar in structure? Name the muscular tissue that functions throughout life without fatigue. Stomata are small pores present in the epidermis of leaves and are enclosed by two kidney shaped cells called guard cell. Since they do not consume or need much energy, so most of the tissues of plants are supportive.
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