NCERT Solution for Class 6 Science. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. These fibres can not be produced by any type of chemical process. Animal Fibres - Silk | Home | | Pharmacognosy | Chapter: Pharmacognosy and Phytochemistry : Fibres, Sutures and Surgical Dressings. In India, cotton is grown in Gujarat, Maharashtra, Andhra Pradesh, Punjab, Haryana, Karnataka, Tamil Nadu, Rajasthan, Orissa and Madhya Pradesh. Rabbit hair, animal fibre obtained from the Angora rabbit and the various species of the common rabbit. Differentiate between plant and animal fibres.2. Numerous scientific studies have confirmed their importance in maintaining health and preventing illness. g) Polyester is a natural fibre. The fleece of this animal is made of wool fibres: the most precious hair is long, between 12 and 25 centimetres, slightly curly and bright like silk. These fibres are generally produced from the animal’s fur, skin, hair, or even secretion in the case of the silkworm. (F) Silk fibre is obtained from the stem of a plant. 3. Summary Wool fibers are animal fibers, which are obtained from sheep. Answer. Fibres obtained from the cocoons spun by the larvae Bombyx mori Linn., belonging to family Bombycidae/Moraceae. Answer in Detail1. Rabbits have coats consisting of both long, protective guard hairs and a fine insulating undercoat. Silk. (C) False : Jute is obtained from jute plant (Corchorus). Obtained from various parts of the plant. What are Fibres and Fabrics? Once these animal fibres are extracted they are generally knitted or woven for forming beautiful animal fabrics. Explain the life cycle… These fibres are obtained from different animal sources. Wool is the soft, wavy (or curly) hair which covers the body of a sheep. You also learnt that wool and silk fibres are obtained from animals. Name two items that are made from coconut fibre. Some examples of synthetic fibres are polyester, nylon and acrylic. The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. Used for animal feed as well as human nutrition, fibres form part of Tereos’ by-products. Due to this, woollen fabrics keep us more warm during cold, winter days. certain fibres are not made from natural sources. Answer: The jute plant is normally harvested at flowering stage. Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Then it is subjected to next process depending upon whether it is meant for worsted purpose or woolen products. For example, polyester, nylon, and acrylic etc. Made of proteins eg wool and silk. 3 Fibre to Fabric I n Class VI you have learnt about some fibres obtained from plants. Fibre to Fabric NCERT – Question: Sorter’s disease is an occupational hazard. The second stage began with the use of animal fibres especially wool and silk. These are the only natural fibers, which have considerable low strength. “Textile fibres directly obtained from nature are called natural fibres”. Because of the waviness of wool, the woollen fabrics have a greater bulk (than cotton fabrics) and hence trap more air. Cotton Fibres: Cotton fibre is obtained from cotton plants that grow in black soil in a warm climate. These are a type of natural fibres as they are obtained from nature. Wool is obtained from the fleece (hair) of sheep or yak. 22 Animal Fibre Mahaboobnagar district. These fabrics are then used for making our dresses and for other domestic purposes like curtains, etc. These are called synthetic fibres. That’s right, we get wool from their hair. All questions and answers from the NCERT Book of Class 7 Science Chapter 3 are provided here for you for free. Answer. Silkworms & silkmoths. 3.3 SOME PLANT FIBRES Cotton Have you ever made wicks for oil lamps? These solutions for Animal Fibres are extremely popular among Class 7 students for Science Animal Fibres Solutions come handy for quickly completing your homework and preparing for exams. 2. Animal fibres → Wool and silk fibres are obtained from animals. Wool is a modified form of hair that grows with a waviness. What are you doing? These fibres are usually made up of different kinds of proteins. We are boiling cocoons to get silk fibre. Alpaca to Yak . Wool is obtained from the fleece (hair) of sheep or yak. TYPE OF FIBRES. Artificial silk is obtained from wood pulp and it is made up of modified plant material ‘cellulose’. Explain. Caterpillar of silkworm spins fiber which is mainly made up of two types of protein (sirisine and fibroin) and is very strong. Explain the process of making yarn from fibre. Wool can also be obtained from the hair of rabbits and camels. I work in the reeling centre. Fibres are the materials, which are available in the form of thin, continuous and flexible strands spun into yarn and made into fabrics. The fibres obtained from animals are generally textile. A - Animal fibres: The natural fibres obtained from animals or insects are known as animal fibres. Mohair fibre is obtained from the fleece of Angora goat, originally from Anatolia. Neelima saw cocoons being boiled in water. Question: Explain how jute is obtained from the jute plant. Animal Fibres Synthetic fibres- such fibres are Obtained from Synthetic chemical sources (nylon and rayon they are prepared from chemical process) SILK . Wool is the most commonly used animal fibre. e) Weaving of yarn makes a piece of fabric. LET US KNOW ABOUT SOME ANIMAL FIBRES: WOOL; Wool is obtained from the fleece (hairy growth) of sheep and other wool yielding animals like Yak, Camel, Kashmiri Goat, Llama, Alpaca, Vicuna, Guanaco, etc.These animals have a thick coat of hair on their bodies to trap a lot of air. Fibres obtained from the cocoons spun by the larvae Bombyx mori Linn., belonging to family Bombycidae/Moraceae. Another animal fibre you all are familiar with is silk. Fibres. Silk came to various parts of the world from China. What do you use for making these wicks? Most of this down fibre is plucked or combed out by hand during the molting season. Wool, after shearing, it is graded and then scoured with alkaline solution. Animal fibres are the natural fibres that can be sourced to animals. Can you name the fibre we get from sheep and goat? (g) Polyester is a natural fibre. This cotton wool is also used for filling mattresses, quilts or pillows. For example, polyester, nylon, and acrylic, etc. Fibres are also made from chemical substances, which are not obtained from plant or animal sources. Natural silk is an animal fibre. The silk fiber is the only fiber obtained from an insect (secretion) – … Silk fibres come from cocoons of the silk moth. Animals that yield wool → Breeds of sheep are found in different pa These MCQ Questions on Fibre to Fabric Class 7 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. 2. The fibres are of two types:1 Natural fibres 2 Synthetic fibres. Learn about animal fibres with examples and FAQs here. The largest number of breeds in one country is in Britain, with around 65. Camel fibre. The fibres which are obtained from natural sources like plants and animals are called natural fibres.The fibres which are prepared from chemical substances in industry are called synthetic fibres. Silk fibre is obtained from: (a) fleece of sheep (b) cotton ball (c) cocoon (d) shiny jute stalk. Sheep. Silk fibres come from cocoons of the silk moth. (D) True (E) True (F) False : Silk fibre is obtained from silkworm (animal). f) Silk fibre is obtained from the stem of a plant. Some examples of synthetic fibres are polyester, nylon and acrylic. substances, which are not obtained from plant or animal sources. Animal fibres. Which of the following would be the right gift for her to buy? Find an answer to your question A. These solutions for Animal Fibres Wool And Silk are extremely popular among Class 7 students for Science Animal Fibres Wool And Silk Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Living Science 2019 2020 Book of Class 7 Science Chapter 4 are provided here for you for free. Fabrics are defined as a cloth material made by knitting or weaving or of threads together. These fibres are not obtained from plant or animal sources. Read more about these on the sheep breeds page. How is wool obtained from sheep?3. The downy undercoat is made up of the fine, soft fibre commonly called cashmere, which ranges from 2.5 to 9 cm (1 to 3.5 inches) long. Types of Fibres, Fibre to Fabric, Class 6. Wool - Obtained from fleece/ hair of some animals sheep/ goat/ rabbit/ yak/ camel - Soft to touch - Traps air in the spaces present, air is a poor conductor of heat and so keeps us warm - easily dyed in different colors. These are called synthetic fibres . Types of Fibre There are two types of fibres classified accord 3 Fibre to Fabric I n Class VI you have learnt about some fibres obtained from plants. Wool → Wool comes from sheep, goat, yak and some other animals who are having hair on their body. Do you know which part of the sheep’s body yields fibres? Sheep are the principal source of natural animal fibre and there are more than 200 breeds of sheep worldwide. Answer: (a) Woollen shawl. Animal fibres: Fibres obtained from animal sources are called animal fibres. You also learnt that wool and silk fibres are obtained from animals. Natural Fibres can be categorised in two different types: Plant Fibres. a) Yarn is made from fibres. Usually in a very bright silver white, sometimes it may be ash-grey, rosy, brown or black. From which parts of the plant cotton and jute are obtained? Names of Animal Fibres. Fibres are long chains of carbohydrates that are neither digested nor absorbed in the human small intestine. Do you know which part of the sheep’s body yields fibres? Natural fibres further can be classified in two categories according to its source of generation. Wool. By-products. Solving the Fibre to Fabric Multiple Choice Questions of Class 7 Science Chapter 3 MCQ can be of extreme help as you will be aware of all the concepts. The third stage in the history of clothing began in the late 19th century with the development of man-made or synthetic fibres like rayon, nylon and polyester. With alkaline solution the animal wool can also be obtained from the (... Cellulose ’ for filling mattresses, quilts or pillows rabbits have coats consisting of both long, guard! 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