Out of these, two fibres (1 and 2) are obtained from plants and other two (3 and 4) fibres are obtained from animals. Answer: (a) Woollen shawl. Natural fibres are the fibres that are obtained from plants, animals or mineral sources. The process by which silk is produced is called sericulture. Natural fibres can again be divided into two types based on their source i.e. wool and silk), vegetable fibres (e.g. e) Weaving of yarn makes a piece of fabric. True. Silkworm is reared to obtain silk. Pashmina refers to a fine variant of spun cashmere, the animal-hair fibre forming the downy undercoat of the Changthangi goat. Silk fibre is obtained from (a) fleece of sheep (b) cotton ball (c) cocoon (d) shiny jute stalk. The rearing of silkworms for obtaining silk is called sericulture. Animal hair: Animal hair is a commonly used source to obtain animal fibres. The hair of animals like sheep, horses and goats are commonly used as animal fibres. Ask your question. Silk fibre is obtained at which of the following stage of its life cycle? 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. Which of the following would be the right gift for her to buy? 3. Silk fibre: Silk fibres are the fibres that are obtained from the cocoons of the silkworm, typically of the species Bombyx mori. ajith1826 ajith1826 12.06.2020 Environmental Sciences Secondary School Silk fibres are obtained from which animal 2 Here you will learn in-depth about how is silk obtained from silkworm, and different types of silk. silk fibres and turns into pupa. You also learnt that wool and silk fibres are obtained from animals. Answers: a) – True, b) – False, c) – False, d) – True e) – True, f) – False, g) – False. 3 Fibre to Fabric I n Class VI you have learnt about some fibres obtained from plants. B) Silk done clear. 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. 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. Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. Log in. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. Question: Explain how jute is obtained from the jute plant. jute and cotton) and mineral fibres (e.g. What are the common health problems found in the people who work in silk industry? C) done clear. a)Wool b)silk c) jute D )pashmina roopal6582 roopal6582 20.05.2019 ANIMAL FIBRES • These include wool and silk. Name some fibres obtained from animals; Wool and silk. Fibres are also made from chemical substances, which are not obtained from plant or animal sources. Join now. (D) True (E) True (F) False : Silk fibre is obtained from silkworm (animal). Answer. How is silk fibre obtained? 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. The silk fibre obtained from the cocoon of mulberry silk moth are soft and lustrous. Silkworms spin cocoons for the vulnerable pupa stage. Animal fibres are known as silk fibres. It is a natural silk and is an animal fibre. flax hemp 6. Silk became a prized possession because of its fine quality and luster. 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. 3.9). Question 23. Can you imagine that the soft silk yarn is as strong as a comparable thread of steel! (C) False : Jute is obtained from jute plant (Corchorus). Silk fibres are used for weaving silk cloth. f) Silk fibre is obtained from the stem of a plant. Animal fibres: These are the fibres that are obtained from animals. Sericulture Sericulture means ‘silk farming’. Sheep Wool. Answer. It is obtained from the cocoons of mulberry silkworm and is made up of protein. Silk is another important animal fiber. Question 4. Silk fibres are used for weaving silk cloth. This covering is known as cocoon . SOLUTION: (A) True (B) False : Spinning is the process of making yarn from fibres. Question 19. 19. 3. Play quiz on "Natural Fibres -Plant and Animal fibres" here: Quiz On Natural Fibres. Living Science Solutions for Class 7 Science Chapter 4 Animal Fibres are provided here with simple step-by-step explanations. Silk fibres are obtained from which animal Get the answers you need, now! (a) Mulberry silk (b) Tassar silk (c) Mooga silk (d) Moth silk 3. Wool is obtained from the fleece of sheep or goat. Animal Hair/Wool Fibers. 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. (a) Woollen shawl (b) Silk scarf (c) Animal fur cap (d) Leather jacket. The silk fiber is the only fiber obtained from an insect (secretion) – silkworm. Silk Silk is a natural fibre which is obtained from an insect (called silk moth). Cotton was first produced in (a) Egypt (b) India (c) Europe (d) China Silk fibre is drawn from the cocoon of silkworm. For example, polyester, nylon, and acrylic etc. Silk is a natural fibre which is obtained from an insect called silk moth or silkworm. b) Spinning is a process of making fibres. Question: Four different types of fibres are given to us. Wool and silk fibres are obtained from animals. Thus, the fabric is a natural animal fibre. The most common variety of silk is mulberry silk. Paheli wanted to buy a gift made of animal fibre obtained without killing the animal. (v) Silk fibre is chemically a protein. Which of the following is not a type of silk? Which of the following would be the right gift for her to buy? The further development of the pupa into moth continues inside the cocoon (Fig. plants and animals. These are called synthetic fibres. Silk fibres come from cocoons of the silk moth. Join now. The further development of the pupa into moth continues inside the cocoon (Fig. (iv) Silk moths spin the silk fibres. 2. 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. (b) Jute is the outer covering of coconut. (iii) Pashmina shawls woven from the wool obtained from the under fur of Kashmiri goats. Question 3. B) done clear. Silk is the strongest natural fibre. silk fibres and turns into pupa. So, silk fibres are also animal fibres. mention any two. (a) Woollen shawl (b) Silk scarf (c) Animal fur cap f) Silk fibre is obtained from the stem of a plant g) Polyester is a natural fibre. Reeling is done in special machines, which unwind the threads or fibres of silk from the cocoon. History of Silk: Silk was discovered in China; around 3500 BC. Do you know which part of the sheep’s body yields fibres? ... From the given options choose the animal from which fleece cannot be obtained – sheep, goat, yak, cow; Cow. 1. Originally, it was used by emperors only. A) done clear. Can you imagine that the soft silk yarn is as strong as a comparable thread of steel! SILK. This covering is known as cocoon . (i) Wool and silk are the animal fibres. 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 ). (g) Polyester is a natural fibre. Silk fibre is obtained from silk worms. d) The process of removing seed from cotton is called ginning. Silk fibres are obtained from silkworms. Let us find out how is silk obtained … 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. Natural fibres include animal fibres (e.g. Click here 👆 to get an answer to your question ️ Which of the following is not a animal fibre? Silk fibers are produced on demand from special silk glands of several groups of invertebrate animals such as silk moths. 1. (ii) Silk is obtained from the fleece of sheep. 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 … Examples of Natural Fibres. The species of silk moth which spin the silk fibres is Bombyx mori. Wool comes from mainly from fleece of sheep. A) Cotton done clear. In common parlance today, pashmina may refer either to the material or to the variant of the Kashmir shawl that is made from it. Question 9. The silk fibres separate out. The rearing of silkworms for obtaining silk is called: (a) moriculture (b) apiculture (c) sericulture (d) silviculture. 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 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? Silkworms spin the silk fibres. The silk fibre is made up of a protein. How is Silk Obtained from Cocoon of Silkworms? Question 5. 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, 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. Silk worm spins silk. The word pashm means "wool" in Persian, but in Kashmir, pashm referred to the raw unspun wool of domesticated Changthangi goats. The rearing of silkworms for obtaining silk is called (a) cocoon (b) silk (c) sericulture (d) silviculture 2. Fill in the blanks : a) Plant fibres are obtained from ___ and ___ b) Animal fibres are ___ and ___ Answers: a) Jute and cotton b) Silk … Some examples are cotton, silk, wool etc. Solution: (c) Silk is a natural fibre which is obtained from the cocoons of silk moths. It is also obtained from the hair of rabbits, yak and camels. asbestos). Fur and leather are animal products which are obtained from the skin of animals by killing them. The process of taking out threads from the cocoon for use as silk is called reeling the silk. c) Jute is the outer covering of coconut. g) Polyester is a natural fibre. Which of the following is an animal fibre? a) Yarn is made from fibres. 3 Fibre to Fabric MULTIPLE CHOICE QUESTIONS 1. (F) Silk fibre is obtained from the stem of a plant. Log in. Wool is obtained from the fleece fleece (hair) of sheep or yak. 3.9). (vi) The most common silk moth is the mulberry silk moth. 1. 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. Is a process of removing seed from cotton is called sericulture problems found in the people who in! 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