Jute plants yield fibres of relatively high length. 2) Flax : Flax fibre is a soft and smooth fibre which is obtained from the stem portion of the flax plants. Jute fibre is also known to be quite soft. b) Spinning is a process of making fibres. Jute is the best fiber obtained from the internal bast tissues of the plant stem. g) Polyester is a natural fibre. Some fibres such as cotton, jute, silk and wool obtained from plants and animals are called: (a) synthetic fibres (b) natural fibres (c) silver (d) none of these. Answer: (a) stem of jute plant Explanation: Jute fibres are obtained from the stem of jute plant. In stagnant water gummy matter that holds the fibres with its stem is eaten away by bacteria. Answer (b) natural fibres Some fibres such as cotton, jute, silk and wool obtained from plants and animals are called natural fibres. Jute fiber is a long, soft, shiny, cheap and non-toxic fiber that can be woven into strong coarse yarn. Silk is a animal fibre which is obtained from silkworm. Question 6. Jute fibre is obtained from the stem of the jute plant. The fibers are bound together by gum materials (pectin) that maintain bundles of fibers drawn with non-fibrous tissue of jute … Jute fibres are relatively cheap and therefore affordable by many people. After cutting of jute plants it is left for some days in the field when leaves are dried up these are immersed in stagnant water. Natural bast Fibers are strong, cellulosic fibers obtained from the phloem or outer bark of jute, kenaf, flax and hemp plant. The stems are harvested jute plants are immersed in water for a few days. Thus, option C is correct. Number of yams used to make fabric by weaving and knitting are (a) two sets of yams in each case (b) single yam in each case (c) two sets of yams in weaving and single in knitting They support the conductive cells of the phloem and provide strength to the stem. a) Yarn is made from fibres. The stems of the harvested plants are immersed in water for a few days. 1) Jute : Jute is one of the most used fibres which we get from the stem portion of the jute plants. In India, jute is mainly grown in West Bengal, Bihar and Assam. Jute crop is cultivated in the rainy season. Jute fibres are bast fibres (phloem fibres). Jute fibre is obtained from the stem of a jute plant. Another desirable property of jute is that it is quite lustrous. The best fibre quality is achieved when jute is harvested early when about 50% of the plants are in pod; with C. olitorius at 90 days after planting, C. capsularis at 100 days. Jute plant are harvested from the fields when they are at flowering stage. Higher yields are achieved by harvesting after 100 days but the fibres are then of lesser quality. (b) False, Jute is obtained from the stem of a jute plant. Jute fibre is cultivated during the rainy season. (c) True (d) True. Jute is mainly grown in West Bengal,Bihar and Assam. 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