Wool comes from mainly from fleece of sheep. ajith1826 ajith1826 12.06.2020 Environmental Sciences Secondary School Silk fibres are obtained from which animal 2 Silk is another important animal fiber. You also learnt that wool and silk fibres are obtained from animals. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. a)Wool b)silk c) jute D )pashmina roopal6582 roopal6582 20.05.2019 g) Polyester is a natural fibre. Silk fibers are produced on demand from special silk glands of several groups of invertebrate animals such as silk moths. jute and cotton) and mineral fibres (e.g. 3 Fibre to Fabric MULTIPLE CHOICE QUESTIONS 1. Can you imagine that the soft silk yarn is as strong as a comparable thread of steel! B) Silk done clear. True. The hair of animals like sheep, horses and goats are commonly used as animal fibres. Silkworms spin cocoons for the vulnerable pupa stage. Silk fibre is obtained from silk worms. These MCQ Questions on Synthetic Fibres and Plastics Class 8 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Silk fibre is obtained from (a) fleece of sheep (b) cotton ball (c) cocoon (d) shiny jute stalk. f) Silk fibre is obtained from the stem of a plant. Natural fibres include animal fibres (e.g. How is silk fibre obtained? The silk fibre is made up of a protein. Animal fibres: These are the fibres that are obtained from animals. Silk fibre: Silk fibres are the fibres that are obtained from the cocoons of the silkworm, typically of the species Bombyx mori. Silk fibres are used for weaving silk cloth. The cultivation of silkworms to produce silk is called sericulture/silk farming.Before we discuss the process of obtaining silk, let us know the life cycle of the silk … The most common variety of silk is mulberry silk. 19. Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. What are the common health problems found in the people who work in silk industry? Can you imagine that the soft silk yarn is as strong as a comparable thread of steel! (i) Wool and silk are the animal fibres. Question: Explain how jute is obtained from the jute plant. Examples of Natural Fibres. (ii) Silk is obtained from the fleece of sheep. Here you will learn in-depth about how is silk obtained from silkworm, and different types of silk. Silkworms spin the silk fibres. Solving the Synthetic Fibres and Plastics Multiple Choice Questions of Class 8 Science Chapter 3 MCQ can be of extreme help as you will be aware of all the concepts. Animal hair: Animal hair is a commonly used source to obtain animal fibres. Question: Four different types of fibres are given to us. Silk fibres are obtained from which animal Get the answers you need, now! 3.9). Fibres are also made from chemical substances, which are not obtained from plant or animal sources. Silk, Cashmere, Shearling, and Other Animal-Derived Clothing Share Tweet Donate Minks, foxes, and chinchillas usually come to mind when the subject of fur comes up, but countless other species are also exploited to make clothing. ... From the given options choose the animal from which fleece cannot be obtained – sheep, goat, yak, cow; Cow. 1. wool and silk), vegetable fibres (e.g. Thus, the fabric is a natural animal fibre. Fur and leather are animal products which are obtained from the skin of animals by killing them. Silk fibres are obtained from silkworms. The rearing of silkworms for obtaining silk is called (a) cocoon (b) silk (c) sericulture (d) silviculture 2. c) Jute is the outer covering of coconut. For example, polyester, nylon, and acrylic etc. How is Silk Obtained from Cocoon of Silkworms? Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Originally, it was used by emperors only. 2. silk fibres and turns into pupa. Silk Silk is a natural fibre which is obtained from an insect (called silk moth). Wool and silk fibres are obtained from animals. asbestos). Silk fibre is obtained at which of the following stage of its life cycle? Animal Fibres - Silk | Home | | Pharmacognosy | Chapter: Pharmacognosy and Phytochemistry : Fibres, Sutures and Surgical Dressings Fibres obtained from the cocoons spun by the larvae Bombyx mori Linn., belonging to family Bombycidae/Moraceae. So, silk fibres are also animal fibres. e) Weaving of yarn makes a piece of fabric. Answers: a) – True, b) – False, c) – False, d) – True e) – True, f) – False, g) – False. f) Silk fibre is obtained from the stem of a plant g) Polyester is a natural fibre. Pashmina refers to a fine variant of spun cashmere, the animal-hair fibre forming the downy undercoat of the Changthangi goat. (iv) Silk moths spin the silk fibres. Silk fibre is drawn from the cocoon of silkworm. In commercial use, silk is almost entirely limited to filaments from the cocoons of domesticated silkworms (caterpillars of several moth species belonging to the genus Bombyx ). Join now. Let us find out how is silk obtained … Silk fibre made of How silk is made from silkworm yak How does sericulture done what isrearing 1.What changes take place in the Pupa stage of silkworm? 3.9). Cotton was first produced in (a) Egypt (b) India (c) Europe (d) China The silk fibre obtained from the cocoon of mulberry silk moth are soft and lustrous. Silk is a natural fibre which is obtained from an insect called silk moth or silkworm. Silkworm is reared to obtain silk. Silk became a prized possession because of its fine quality and luster. ANIMAL FIBRES • These include wool and silk. A) Cotton done clear. Which of the following is not a type of silk? Question 3. (a) Mulberry silk (b) Tassar silk (c) Mooga silk (d) Moth silk 3. Fill in the blanks : a) Plant fibres are obtained from ___ and ___ b) Animal fibres are ___ and ___ Answers: a) Jute and cotton b) Silk … Sheep Wool. 1. B) done clear. silk fibres and turns into pupa. Animal fibres are known as silk fibres. flax hemp 6. The word pashm means "wool" in Persian, but in Kashmir, pashm referred to the raw unspun wool of domesticated Changthangi goats. Which of the following would be the right gift for her to buy? Which of the following is an animal fibre? Question 9. Question 23. (F) Silk fibre is obtained from the stem of a plant. (b) Jute is the outer covering of coconut. Silk is a natural protein fiber, some forms of which can be woven into textiles.The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. (g) Polyester is a natural fibre. Question 19. a) Yarn is made from fibres. b) Spinning is a process of making fibres. (C) False : Jute is obtained from jute plant (Corchorus). Answer: (a) Woollen shawl. The species of silk moth which spin the silk fibres is Bombyx mori. Do you know which part of the sheep’s body yields fibres? It is obtained from the cocoons of mulberry silkworm and is made up of protein. Natural fibres can again be divided into two types based on their source i.e. Ask your question. Question 5. Reeling is done in special machines, which unwind the threads or fibres of silk from the cocoon. Silk worm spins silk. This covering is known as cocoon . Natural fibres are the fibres that are obtained from plants, animals or mineral sources. The rearing of silkworms for obtaining silk is called sericulture. mention any two. (D) True (E) True (F) False : Silk fibre is obtained from silkworm (animal). The further development of the pupa into moth continues inside the cocoon (Fig. 3. SOLUTION: (A) True (B) False : Spinning is the process of making yarn from fibres. 3 Fibre to Fabric I n Class VI you have learnt about some fibres obtained from plants. Man-made fibres are either regenerated or synthetic; viscose rayon, based on regenerated cellulose, is man-made but not synthetic while polyester, polypropylene and nylon are all synthetic fibres. C) done clear. The rearing of silkworms for obtaining silk is called: (a) moriculture (b) apiculture (c) sericulture (d) silviculture. (a) Woollen shawl (b) Silk scarf (c) Animal fur cap (d) Leather jacket. plants and animals. History of Silk: Silk was discovered in China; around 3500 BC. Silk is the strongest natural fibre. Some examples are cotton, silk, wool etc. Silk fibres come from cocoons of the silk moth. Solution: (c) Silk is a natural fibre which is obtained from the cocoons of silk moths. Log in. Out of these, two fibres (1 and 2) are obtained from plants and other two (3 and 4) fibres are obtained from animals. Log in. Living Science Solutions for Class 7 Science Chapter 4 Animal Fibres are provided here with simple step-by-step explanations. It is a natural silk and is an animal fibre. VEGETABLE FIBRES These include cotton the most widely used of all textile fibres,flax,hemp,jute etc.the bas of the vegetable fibres Is cellulose which is the material used by nature as a structural material in the plan world. Wool is obtained from the fleece of sheep or goat. In fact, the best-known silk fibers are obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity. Silk fibres are used for weaving silk cloth. Play quiz on "Natural Fibres -Plant and Animal fibres" here: Quiz On Natural Fibres. The further development of the pupa into moth continues inside the cocoon (Fig. The silk fibres separate out. Wool is the common name applied to the soft, curly fibers obtained chiefly from the fleece of domesticated sheep, and used extensively in textile manufacturing. A) done clear. SILK. (vi) The most common silk moth is the mulberry silk moth. The process of taking out threads from the cocoon for use as silk is called reeling the silk. Question 4. 1. Sericulture Sericulture means ‘silk farming’. Answer. Animal Hair/Wool Fibers. d) The process of removing seed from cotton is called ginning. Answer. Silk, animal fibre produced by certain insects and arachnids as building material for cocoons and webs, some of which can be used to make fine fabrics. Name some fibres obtained from animals; Wool and silk. 3. (iii) Pashmina shawls woven from the wool obtained from the under fur of Kashmiri goats. Which of the following would be the right gift for her to buy? The silk fiber is the only fiber obtained from an insect (secretion) – silkworm. This covering is known as cocoon . 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. (v) Silk fibre is chemically a protein. (a) Woollen shawl (b) Silk scarf (c) Animal fur cap It is also obtained from the hair of rabbits, yak and camels. The process by which silk is produced is called sericulture. Join now. Click here 👆 to get an answer to your question ️ Which of the following is not a animal fibre? In common parlance today, pashmina may refer either to the material or to the variant of the Kashmir shawl that is made from it. These are called synthetic fibres. Wool is obtained from the fleece fleece (hair) of sheep or yak. Mulbery silk, Tasar Silk and Mooga silk are the varieties of silk produced by different silk worms whereas Moth silk is not a variety of silk. Plant or animal sources for example, Polyester, nylon, and different types of fibres are also from. Changthangi goat around 3500 BC woven from the cocoon of silkworm substances, which unwind the threads fibres... 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