Answer: … (b) Animals fibers are silk and wool . Hot water makes the silk fibres of cocoons to separate out. The cocoons are then unwrapped to get silk fibre, which is then woven into fabric. Reeling is done in special machines which unwind the fibres of silk from cocoons. f) Silk fibre is obtained from the stem of a plant g) Polyester is a natural fibre. Examples: cotton, jute, silk, wool. Question 9 Name the tree whose leaves provide food for the silkworms? the most common variety of silk is mulberry silk. Question 3  How will you distinguish between natural and artificial silk? Question 5 What is a cocoon? Answer: a) True b) False c) False d) True e) True f) False g) False. From which parts of the plant cotton and … The silkworm continues to develop in the form of pupa inside the cocoon to form the silk moth. Fill in the blanks: (a) Plant fibres are obtained from____________ and___________ . no it is not correct silk is obtained from cocoons FALSE, The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. (Paper is also made of cellulose obtained from wood pulp). Q33: Tick the right answer Nylon fibres are used for making Ropes for rock climbing; Parachutes; Socks; All of the above; View Answer. c) We get jute fibres from the outer layer of a stem of the jute plant. Your email address will not be published. name the fibre of which a cocoon is made? material ‘cellulose. A female silk moth lays hundreds of eggs at a time.The eggs of silk moths are stored. (a) Goat (b) Llama (c) Alpaca (d) Moth . … Answer: Natural silk is obtained from the cocoons of silkworms and it is made up of a protein. Question 18. fibres and the developing silkworm (as pupa) gets killed. Sericulture is a very old and common occupation in India, producing silk on a commercial basis. Thank You......​. Some of the varieties of silk are : Mulberry silk; Tassar silk ; Mooga silk ; Kosa silk; and Eri silk. 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? Wool fibre cannot be obtained from which of the following? The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity, This site is using cookies under cookie policy. During these movements of head, the silkworm secretes silk in liquid form through the tiny opening in its head which solidifies on exposure to air and becomes a silk fibre (or silk thread). The cotton fibre is obtained from the fruit of the cotton plant known as cotton balls. These silks are obtained from cocoons spun by the silkworms of different types of silk moths. What is the nature of silk fibre obtained from the cocoon of mulberry silk moth? View Answer. The long silk fibres are obtained by unwinding the threads from cocoons. (1) Rearing of Silkworms to Obtain Cocoons, (2) Processing of Cocoons to Obtain Silk Fibres, (3) Converting Silk Fibres into Silk Cloth. Egg——> Larva(caterpillar) ——> Pupa ——> Silk moth. (b) … Answer: It is soft, lustrous and elastic. When the eggs hatch, silkworms (larvae or caterpillars) come out of eggs. 3. What is sericulture? Solution: (c) Silk is a natural fibre which is obtained from the cocoons of silk moths. Author of this website, Mrs Shilpi Nagpal is MSc (Hons, Chemistry) and BSc (Hons, Chemistry) from Delhi University, B.Ed (I. P. University) and has many years of experience in teaching. Synthetic fibre: The fibre which are synthesized in industry from simple chemicals obtained from petroleum are called synthetic fibre. Answer: (a) Plant fibers are obtained from cotton and jute . Question 6 Explain the process of making yarn from fibre. The silk produced by the silkworms of different varieties of silk moths is different in texture (coarse, smooth, shiny, etc.). Answer: Jute fibres are obtained from the stems of the jute plant. Mulberry silk moth is the most common type, and the fibre obtained from it is lustrous, soft, elastic, and can be dyed with different colours. Question 7: From which part of the plant jute and cotton are obtained? Question 5 Name two items that are made from coconut fibre. Natural silk is obtained from the cocoons of silkworms and it is made of a ‘protein’. The fibers which are obtained from plants and animals are known as natural fibers whereas synthetic fibers are man-made fibers. She has started this educational website with the mindset of spreading Free Education to everyone. Page No 32: Question 6: How is jute fibre made from the jute plant? (Paper is also made of cellulose obtained from wood pulp). 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