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