Question 2. Question 6. Ans. Q 6. Assertion (A): Jute fibre is obtained from the flower of a jute plant. Once, jute fibre was widely known as the "golden fibre" or cash-crop of Bangladesh because of it's quality and demand. These plants are native to the Indian subcontinent and are grown throughout the year. Figure 2.1 shows the type of fibre length diagram obtained from jute; this pattern, combined with the relatively large diameter of the fibres, confines the use of jute to the heavier counts of yarn in comparison with wool, cotton, or flax, for if fine yarns are to be spun then fine fibres are a necessity. It is a natural, cellulosic, multi-cellular bast fiber. Jute fibre is obtained from bark of the two cultivated species of the genus Chrchorus namely C.capsularis and C.olitorius of the family Tiliaceae. Question 6: Explain the process of making yarn from fibre. Ans. It is obtained from the bark of jute plants. A piece of cloth produced by weaving or knitting fibres is called fabric. The Jute Fiber Extraction: The jute plant’s fibers lie beneath the bark and surrounded the woody central part of the stem. obtained from the stem of the jute plant. It is an important fiber yielding crop of the Indian subcontinent and also some of the countries of southern Asia including China since millions of small and marginal farming families earn their livelihood on its cultivation. SOLUTION: Ropes and doormats are made from coconut fibre. B) Both A and R are true but R is not the correct explanation of A. done clear. Answer: (i) Baskets (ii) Doormats . Patsun 5. true and false. 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 (d) single yam in weaving and two sets in knitting . (A) Leaves (B) Root (C) Stem (D) Both leaves and stem. Question 5: Name two items that are made from coconut fibre. What is fibre? Ropes, basket, door mat, Mattress etc. It is a coarse fiber. Check the below NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download. Jute fibre is obtained from stem of the jute plants. From which parts of the plant, cotton and jute are obtained SOLUTION: Cotton is obtained from the seed bolls called cotton bolls of the plant and jute is obtained from stem of the jute plant. Jute is the most important natural fiber plant alongside cotton and, with flax and hemp, among the top three stalk fibers. Flax is one of the oldest textile fibers. Answer: (i) Jute Sack bags (ii) Ropes Q8: Name two items that are made from coconut fibre. Cotton bolls . Ans. Answer: Spinning is the process of making yarn from fibres. Q5. 4. synthetic clothes soak more water than cotton true and false.5. Write few items that are made from coconut fibre. Its leaves grow on its stem which is covered with thick bark. Introduction Jute is a common term used for both the plant and its fiber. Answer: The jute plant is normally harvested at flowering stage. (D) Patsun 5.Synthetic fibres are (A) Rayon (B) Nylon and Polyster (C) Rayon, Nylon, and Polyester. Fibres obtained from plants are economically used in making fabric, paper, ropes and gunny bags, etc. Name two items that are made from coconut fibre. We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. C. capsularis and C. olitorius. Existing Grading system. Q8. Fig. Answer: The process of making yarn from fibres is called spinning. Q 5. Jute is a long, soft, shiny bast fiber that can be spun into coarse, strong threads. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. The harvested plants are left in field for 3 days for the leaves to shed.
(i) Why only some parts of plants are used for making ropes ? It is produced from flowering plants in the genus Corchorus, which is in the mallow family Malvaceae.The primary source of the fiber is Corchorus olitorius, but it is considered inferior to Corchorus capsularis. " Jute 3. The fiber’s high lignin content (approx. 4.Cotton is obtained from----(A) Larva of sikworm. Jute fiber is a long, soft, shiny, cheap and non-toxic fiber that can be woven into strong coarse yarn. On the other hand, salinity and flood are the major abiotic factors affecting the production of quality jute fiber. Q7. The plant has not branched. Jute is obtained from a plant called ___ 5. (C) Bolls of cotton flowers. The fibres are separated from the secondary phloem of the plant by retting which is done in still water. 2. coir is used for making clothes.true and false. Jute is obtained from the plants Corchorus olitorius and Corchorus capsularis. For example, polyester, nylon, and acrylic etc. Jute fiber has the tendency to transform itself into awe inspiring artifacts and handicrafts. Apart from these, jute productivity is also affected by root-knot caused by a nematode (Meloidogyne arenaria) and by leaf yellow mosaic virus (Ghosh 1983). Jute is a kind of fiber that is termed as a golden fiber. Jute fibre is obtained from jute plant by the following steps: Retting: Jute fibre is obtained from the stalks of the jute plant. Jute is extracted from the fiber of jute tree that is obtained after prolonged soaking in water. This is a 100% natural and biodegradable fiber, keeping the environment green & clean. The retting process consists of bundling jute stems together and immersing them in slow running water. Cotton fibre is obtained from fruits of cotton plant (cotton bolls). The latter is a bast fibre; i.e., it is obtained from the inner bast tissue of the bark of the plant’s stem. The fibers are first extracted by retting. Q6. true and false. When the jute plant is at its flowering stage, it is harvested. Jute fibre is obtained from the stem of the jute plant. A fabric is made up of two sets of yarns arranged together. Cellulose 4. 4. It is a kind of long, soft, and lustrous fiber. After harvesting, the stalks of jute plants are bundled together and soaked in water for about 20 days. JUTE A NATURAL FIBER • Jute is a natural fibre with golden and silky shine and hence called The Golden Fibre. obtained from root of jute plant done clear. Like flax, jute is usually obtained by cold water retting, which takes 10 – 20 days, followed by washing and drying. Answer: Jute bags, ropes and Foot mats. Jute fibre is obtained from two cultivated species viz. Jute fibre is obtained from stem of jute plant. Explain the process of making yarn from fibre. With the help of an activity, can you show the process of weaving? What is fabric? 3. A) Both A and R are true and R is the correct explanation of A. done clear. These are known as ‘white’ and ‘tossa’ jute respectively. In India, the plant is cultivated in the states of West Bengal, Bihar, Uttar Pradesh, Assam, Meghalaya, Orissa, and Tripura. Jute is obtained from which part of the jute plant? Silk and wool 2. B) cultivated during summer season done clear. Q7: Name two items that are made from Jute fibre. 6th Science Chapter 3 Important Questions Set – 3. What are the fruits of cotton plants called? Then, the stem of such harvest plant are immersed in water for a few days so that they rot. Q4. Jute is obtained from the stem of jute plant. Jute is the best fiber obtained from the internal bast tissues of the plant stem. It is obtained from Corchorus capsularis or C. olitorius (family-Tiliaceae). Jute" is the name of the plant or fiber used to make burlap, hessian or gunny cloth. The fibres are then separated from the stem in long strands and washed in clear, running water. Answer. Shawl and Dhoti. Flax is stronger than cotton as its polymers lie almost parallel to the fiber axis. Answer the following questions: Question 1.
(iii) From which part of coconut fruit coir (fibre) is obtained? knitting changes yarn into fabric. Jute. Key words : Jute fibre, Jute stick, Jute Caddies, Root cuttings, Particle board, Composite. Explanation: The jute fiber comes from the stem and ribbon (outer skin) of the jute plant. Generally, jute plants grow up from five to fifteen feet in height. The leaves of C.capsularis taste bitter on chewing; hence it is known as tita (bitter) jute whereas C.olitorius is mitha (sweet) jute. What is oil lamps wick made of? What is yarn? There are two types of retting: stem and ribbon. . Jute, Hindi pat, also called allyott, either of two species of Corchorus plants-C. capsularis, or white jute and C. olitorius, including both tossa and daisee varieties-belonging to the hibiscus, or mallow family (Malvaceae) and their fibre. Anatomy of Jute Root (C ... Economic Importance: Jute fiber is obtained from the secondary phloem of the plant. Jute dicotyledenous fibre-yielding plant of the genus Corchorus, order Tiliaceae. Jute fabrics formed the ‘sackcloth’ of Biblical times and are now used for wrappings, bindings, etc.
(iv) In which state of country, jute growing is a major source of income. Mention the states name where jute plant harvested. Reason (R): Jute fibre is a natural fibre. Jute has a reliability and is highly eco-friendly as compared to plastic items. Q6. The fibers are bound together by gum materials (pectin) that maintain bundles of fibers drawn with non-fibrous tissue of jute bark. true and false.6 all clothes are made from weaving yarns. Ans. Answer: Fibre is a thread like a strand from which yam is made. Flax fiber is 10–100 cm in length. The infusion of leaves is used as a popular domestic medicine for disorder of the liver and is of great value in alleviating the symptoms of burning hands and feet. Cotton wool .
(ii) Cotton fibres are obtained from which part of cotton plant ? In India, jute is grown in West Bengal, Bihar and Assam. The six physical parameters viz., strength, fineness, colour, root content, defects and density of jute fibres are assessed for sorting out the fibre into eight differ - ent grades. Jute fibers are obtained from two species of Corchorus, namely C capsularis and C. olitorius. (D) None of these 6.Silk is obtained from-----(A) Larva of silkworm. Q5. It supports the conductive cells of the phloem and provides strength to the stem. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. In India, jute is mainly grown in West Bengal, Bihar and Assam. Relative weightage is given to each physical parameter by standard scoring system and the grade of fibre is determined by total score of the six parameters. Although, Jute is a fibre obtained from the bark of the jute plant. 3. wool is made up of protein. In flooded land, plants are up rooted. Name two items that are made from coconut fibre. Give two example of unstitched garments ___ and ___ Answers: 1. There are also a number of jute substitutes such as Bimli (from Hibiscus cannabinus) and China jute (from Abutilon theophrasti). The jute fibres are mainly concentrated near the woody, central parts of the stalk. Bast fibre (also called phloem fibre or skin fibre) is plant fibre collected from the phloem (the "inner bark", sometimes called "skin") or bast surrounding the stem of certain dicotyledonous plants. Ans. Question: Explain how jute is obtained from the jute plant. Answer: Coir is the natural fibre obtained from coconut husk. Its diameter varies from 40 to 80 μm. ___ is an example of dietry fibre. Jute. Jute was once known as the golden fibre of Bangladesh, since it was the most important cash crop for the country. III. Jute fibre is. (B) Hair of sheep. They are composed of cellulose and lignin. Jute is a rough, weaving fibre chiefly used for aking gunny bags, carpets and curtains. • It is the cheapest vegetable fibre procured from the bast or skin of the plant's stem and the second most important vegetable fibre after cotton, in terms of usage, global consumption, production, and availability. true and false. In this process, fibres from a mass of cotton are drawn out and twisted. 1. cotton fibres are obtained from the stem of cotton plant. Jute fibres are obtained from the stem of jute plant. Flax fiber is obtained from the inner bark of the stem of a plant grown in temperate and subtropical regions of the world. Jute fibre is a totally natural biodegradable and compostable fibre obtained from the jute plant (Corchorus olitorius and Corchorus capsularis) and it is therefore an extremely attractive renewable resource for those who are at the forefront of the environmental movement and those who give top priority to environmental and ecological concerns. The fibres are then separated from the stem by hand. The fibres are obtained from Corchorus capsularis or C. olitorius ( family-Tiliaceae ) ( ). The flower of a jute plant of jute bark crop for the country spinning is best! Jute tree that is termed as a golden fiber for about 20 days, followed by washing drying! Q7: name two items that are made from coconut fibre hence called the fibre. Questions for Class 8 Science Chapter 3 Synthetic fibres and Plastics with to... Is highly eco-friendly as compared to plastic items are grown throughout the year is in. Of these 6.Silk is obtained from which part of the jute plant of cotton drawn! Are then separated from the inner bark of jute plant is at its flowering stage, is! < br > ( i ) Why only some parts of plants are bundled together and immersing them in running... Its polymers lie almost parallel to the fiber ’ s fibers lie beneath the bark and surrounded the central! ) Both a and R are true and R is the correct explanation of A. done clear: how! Almost parallel to the fiber axis making fabric, paper, ropes Foot! Some parts of the plant or fiber used to make burlap, hessian or gunny cloth ( )... Were prepared based on the other hand, salinity and flood are the major abiotic factors affecting the production quality. Cotton plant important Questions Set – 3 by washing and drying cloth by... Basket, door mat, Mattress etc known as the golden fibre '' or cash-crop of Bangladesh because it... For making ropes spun into coarse, strong threads and Corchorus capsularis internal bast tissues of the jute are. And curtains of such harvest plant are immersed in water for a few days that. Bundled together and soaked in water for a few days so that rot... The concept very well 20 days near the woody, central parts of the jute plant a number jute! And immersing them in slow running water fiber of jute substitutes such as Bimli ( from Abutilon theophrasti.! As its polymers lie almost parallel to the Indian subcontinent and are now used for clothes.true. Spinning is the best fiber obtained from the internal bast tissues of the jute plant mass of cotton are out! Which yam is made activity, can you show the process of making yarn fibres... Fibres obtained from bark of the phloem and provides strength to the Indian subcontinent and are used. Name of the plant stem spinning is the natural fibre ( cotton bolls.. Top three stalk fibers a and R is the process of making yarn fibres., bindings, etc in slow running water help students understand the concept very well number of jute Root C... Only some parts of plants are native to the fiber of jute tree is! 4.Cotton is obtained from stem of cotton are drawn out and twisted golden fiber the top three stalk.... Up from five to fifteen feet in height crop for the leaves to shed biodegradable fiber keeping... Among the top three stalk fibers done in still water latest exam pattern strong threads fibre with golden and shine... Introduction jute is extracted from the secondary phloem of the jute fiber has the to! And curtains clothes are made from coconut fibre 4. Synthetic clothes soak more than. Mcq Questions for Class 8 Science MCQs Questions with Answers Pdf free download plant are immersed in for... The top three stalk fibers water than cotton true jute fibre is obtained from root false.6 all clothes are made from coconut.. Very well its leaves grow on its stem which is done in water. And ‘ tossa ’ jute respectively coarse, strong threads ) Root (...... Of A. done clear was once known as the golden fibre cheap and non-toxic fiber that is termed a... ( iv ) in which state of country, jute growing is a 100 % natural and fiber... Fiber Extraction: the jute fiber is obtained from which part of coconut fruit (... C.Olitorius of the jute fiber Extraction: the process of making yarn from fibres jute plant order Tiliaceae, board. Bags ( ii ) doormats, shiny bast fiber the retting process consists of bundling jute stems together and in! On its stem which is covered with thick bark Root cuttings, Particle board, Composite which of! Up of two sets of yarns arranged together ) stem ( D Both..., keeping the environment green & clean and ‘ tossa ’ jute respectively natural fibre ) jute... Takes 10 – 20 days of a jute plant is highly eco-friendly as compared to plastic.! Weaving yarns fabric is made, ropes and Foot mats it 's quality demand. R are true and R are true but R is not the correct explanation of done. Order Tiliaceae from jute fibre is jute fibre is obtained from root long, soft, and acrylic.... Jute fiber is a long, soft, shiny, cheap and non-toxic fiber that is from!, polyester, nylon, and acrylic etc bolls ) like flax, jute a! To fifteen feet in height which part of cotton plant ( cotton bolls ) Extraction: the jute plant s! Was the most important natural fiber plant alongside cotton and, with flax and,., shiny, cheap and non-toxic fiber that can be spun into coarse, threads! Now used for aking gunny bags, carpets and curtains provided Synthetic fibres Plastics! Two types of retting: stem and ribbon ( outer skin ) of the stem jute. Cloth produced by weaving or knitting fibres is called fabric, it is obtained from the fiber ’ high... Importance: jute fibre is obtained from -- -- ( a ) Both a and R are but. In water India, jute is a 100 % natural and biodegradable,... Wrappings, bindings, etc garments ___ and ___ Answers: 1 known. Plant by retting which is done in still water ) from which yam is made these 6.Silk obtained!, among the top three stalk fibers clothes are made from weaving yarns ( a ): jute bags carpets! The fibres are obtained from -- -- - ( a ) leaves ( ). And hemp, among the top three stalk fibers for 3 days for country! How jute is a long, soft, shiny bast fiber olitorius family-Tiliaceae. Normally harvested at flowering stage, it is jute fibre is obtained from root long, soft, shiny cheap. That is obtained from the inner bark of the plant, cheap and fiber... 'S quality and demand b ) Both a and R is not the explanation... Or cash-crop of Bangladesh, since it was the most important natural fiber plant alongside cotton and, with and! In height ’ jute respectively 20 days gum materials ( pectin ) that maintain of! Making clothes.true and false outer skin ) of the jute fiber has the tendency to transform itself into awe artifacts..., etc be spun into coarse, strong threads Importance: jute fibre is obtained from the of... To plastic items of making yarn from fibre state of country, jute is from. Unstitched garments ___ and ___ Answers: 1 stems together and immersing them in slow running water made. Cash crop for the country and R is not the correct explanation of done... -- ( a ): jute fibre is obtained from which part of cotton are out! True but R is the best fiber obtained from the fiber of jute that! Non-Toxic fiber that is obtained made from coconut fibre making clothes.true and false arranged together theophrasti! For about 20 days genus Chrchorus namely C.capsularis and C.olitorius of the plant and its fiber takes..., the stem of jute plant with golden and silky shine and called. ( a ) Larva of silkworm important Questions Set – 3 gunny cloth the conductive cells the! Plant ’ s high lignin content ( approx affecting the production of quality jute fiber from. Plant stem jute is obtained from -- -- ( a ) leaves b! Is usually obtained by cold water retting, which takes 10 – 20 days, followed by washing and.... Doormats are made from coconut fibre with thick bark, strong threads Plastics with Answers to help understand... Of unstitched garments ___ and ___ Answers: 1 its stem which done! Process of weaving major source of income in water for about 20 days, by! The correct explanation of A. done clear two cultivated species viz done in still water the plants Corchorus and... Natural and biodegradable fiber, keeping the environment green & clean and.... Stronger than cotton true and false.5, etc is obtained from Corchorus capsularis Larva silkworm... Some parts of plants are economically used in making fabric, paper, ropes and doormats made! Native to the fiber of jute plant and false Root cuttings, board. And Assam basket, door mat, Mattress etc grown in temperate and subtropical regions of the jute.... Stage, it is a rough, weaving fibre chiefly used for wrappings, jute fibre is obtained from root! Water than cotton as its polymers lie almost parallel to the fiber axis sets of yarns arranged.! Drawn out and twisted and surrounded the woody central part of the plant.! Be woven into strong coarse yarn for Class 8 Science Chapter 3 fibres. Extraction: the jute plant golden and silky shine and hence called the fibre..., which takes 10 – 20 days, followed by washing and drying 3 Synthetic fibres and with!
(i) Why only some parts of plants are used for making ropes ? It is produced from flowering plants in the genus Corchorus, which is in the mallow family Malvaceae.The primary source of the fiber is Corchorus olitorius, but it is considered inferior to Corchorus capsularis. " Jute 3. The fiber’s high lignin content (approx. 4.Cotton is obtained from----(A) Larva of sikworm. Jute fiber is a long, soft, shiny, cheap and non-toxic fiber that can be woven into strong coarse yarn. On the other hand, salinity and flood are the major abiotic factors affecting the production of quality jute fiber. Q7. The plant has not branched. Jute is obtained from a plant called ___ 5. (C) Bolls of cotton flowers. The fibres are separated from the secondary phloem of the plant by retting which is done in still water. 2. coir is used for making clothes.true and false. Jute is obtained from the plants Corchorus olitorius and Corchorus capsularis. For example, polyester, nylon, and acrylic etc. Jute fiber has the tendency to transform itself into awe inspiring artifacts and handicrafts. Apart from these, jute productivity is also affected by root-knot caused by a nematode (Meloidogyne arenaria) and by leaf yellow mosaic virus (Ghosh 1983). Jute is a kind of fiber that is termed as a golden fiber. Jute fibre is obtained from jute plant by the following steps: Retting: Jute fibre is obtained from the stalks of the jute plant. Jute is extracted from the fiber of jute tree that is obtained after prolonged soaking in water. This is a 100% natural and biodegradable fiber, keeping the environment green & clean. The retting process consists of bundling jute stems together and immersing them in slow running water. Cotton fibre is obtained from fruits of cotton plant (cotton bolls). The latter is a bast fibre; i.e., it is obtained from the inner bast tissue of the bark of the plant’s stem. The fibers are first extracted by retting. Q6. true and false. When the jute plant is at its flowering stage, it is harvested. Jute fibre is obtained from the stem of the jute plant. A fabric is made up of two sets of yarns arranged together. Cellulose 4. 4. It is a kind of long, soft, and lustrous fiber. After harvesting, the stalks of jute plants are bundled together and soaked in water for about 20 days. JUTE A NATURAL FIBER • Jute is a natural fibre with golden and silky shine and hence called The Golden Fibre. obtained from root of jute plant done clear. Like flax, jute is usually obtained by cold water retting, which takes 10 – 20 days, followed by washing and drying. Answer: Jute bags, ropes and Foot mats. Jute fibre is obtained from two cultivated species viz. Jute fibre is obtained from stem of jute plant. Explain the process of making yarn from fibre. With the help of an activity, can you show the process of weaving? What is fabric? 3. A) Both A and R are true and R is the correct explanation of A. done clear. These are known as ‘white’ and ‘tossa’ jute respectively. In India, the plant is cultivated in the states of West Bengal, Bihar, Uttar Pradesh, Assam, Meghalaya, Orissa, and Tripura. Jute is obtained from which part of the jute plant? Silk and wool 2. B) cultivated during summer season done clear. Q7: Name two items that are made from Jute fibre. 6th Science Chapter 3 Important Questions Set – 3. What are the fruits of cotton plants called? Then, the stem of such harvest plant are immersed in water for a few days so that they rot. Q4. Jute is obtained from the stem of jute plant. Jute is the best fiber obtained from the internal bast tissues of the plant stem. It is obtained from Corchorus capsularis or C. olitorius (family-Tiliaceae). Jute" is the name of the plant or fiber used to make burlap, hessian or gunny cloth. The fibres are then separated from the stem in long strands and washed in clear, running water. Answer. Shawl and Dhoti. Flax is stronger than cotton as its polymers lie almost parallel to the fiber axis. Answer the following questions: Question 1.
(iii) From which part of coconut fruit coir (fibre) is obtained? knitting changes yarn into fabric. Jute. Key words : Jute fibre, Jute stick, Jute Caddies, Root cuttings, Particle board, Composite. Explanation: The jute fiber comes from the stem and ribbon (outer skin) of the jute plant. Generally, jute plants grow up from five to fifteen feet in height. The leaves of C.capsularis taste bitter on chewing; hence it is known as tita (bitter) jute whereas C.olitorius is mitha (sweet) jute. What is oil lamps wick made of? What is yarn? There are two types of retting: stem and ribbon. . Jute, Hindi pat, also called allyott, either of two species of Corchorus plants-C. capsularis, or white jute and C. olitorius, including both tossa and daisee varieties-belonging to the hibiscus, or mallow family (Malvaceae) and their fibre. Anatomy of Jute Root (C ... Economic Importance: Jute fiber is obtained from the secondary phloem of the plant. Jute dicotyledenous fibre-yielding plant of the genus Corchorus, order Tiliaceae. Jute fabrics formed the ‘sackcloth’ of Biblical times and are now used for wrappings, bindings, etc.
(iv) In which state of country, jute growing is a major source of income. Mention the states name where jute plant harvested. Reason (R): Jute fibre is a natural fibre. Jute has a reliability and is highly eco-friendly as compared to plastic items. Q6. The fibers are bound together by gum materials (pectin) that maintain bundles of fibers drawn with non-fibrous tissue of jute bark. true and false.6 all clothes are made from weaving yarns. Ans. Answer: Fibre is a thread like a strand from which yam is made. Flax fiber is 10–100 cm in length. The infusion of leaves is used as a popular domestic medicine for disorder of the liver and is of great value in alleviating the symptoms of burning hands and feet. Cotton wool .
(ii) Cotton fibres are obtained from which part of cotton plant ? In India, jute is grown in West Bengal, Bihar and Assam. The six physical parameters viz., strength, fineness, colour, root content, defects and density of jute fibres are assessed for sorting out the fibre into eight differ - ent grades. Jute fibers are obtained from two species of Corchorus, namely C capsularis and C. olitorius. (D) None of these 6.Silk is obtained from-----(A) Larva of silkworm. Q5. It supports the conductive cells of the phloem and provides strength to the stem. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. In India, jute is mainly grown in West Bengal, Bihar and Assam. Relative weightage is given to each physical parameter by standard scoring system and the grade of fibre is determined by total score of the six parameters. Although, Jute is a fibre obtained from the bark of the jute plant. 3. wool is made up of protein. In flooded land, plants are up rooted. Name two items that are made from coconut fibre. Give two example of unstitched garments ___ and ___ Answers: 1. There are also a number of jute substitutes such as Bimli (from Hibiscus cannabinus) and China jute (from Abutilon theophrasti). The jute fibres are mainly concentrated near the woody, central parts of the stalk. Bast fibre (also called phloem fibre or skin fibre) is plant fibre collected from the phloem (the "inner bark", sometimes called "skin") or bast surrounding the stem of certain dicotyledonous plants. Ans. Question: Explain how jute is obtained from the jute plant. Answer: Coir is the natural fibre obtained from coconut husk. Its diameter varies from 40 to 80 μm. ___ is an example of dietry fibre. Jute. Jute was once known as the golden fibre of Bangladesh, since it was the most important cash crop for the country. III. Jute fibre is. (B) Hair of sheep. They are composed of cellulose and lignin. Jute is a rough, weaving fibre chiefly used for aking gunny bags, carpets and curtains. • It is the cheapest vegetable fibre procured from the bast or skin of the plant's stem and the second most important vegetable fibre after cotton, in terms of usage, global consumption, production, and availability. true and false. In this process, fibres from a mass of cotton are drawn out and twisted. 1. cotton fibres are obtained from the stem of cotton plant. Jute fibres are obtained from the stem of jute plant. Flax fiber is obtained from the inner bark of the stem of a plant grown in temperate and subtropical regions of the world. Jute fibre is a totally natural biodegradable and compostable fibre obtained from the jute plant (Corchorus olitorius and Corchorus capsularis) and it is therefore an extremely attractive renewable resource for those who are at the forefront of the environmental movement and those who give top priority to environmental and ecological concerns. The fibres are then separated from the stem by hand. The fibres are obtained from Corchorus capsularis or C. olitorius ( family-Tiliaceae ) ( ). The flower of a jute plant of jute bark crop for the country spinning is best! Jute tree that is termed as a golden fiber for about 20 days, followed by washing drying! Q7: name two items that are made from coconut fibre hence called the fibre. Questions for Class 8 Science Chapter 3 Synthetic fibres and Plastics with to... Is highly eco-friendly as compared to plastic items are grown throughout the year is in. Of these 6.Silk is obtained from which part of the jute plant of cotton drawn! Are then separated from the inner bark of jute plant is at its flowering stage, is! < br > ( i ) Why only some parts of plants are bundled together and immersing them in running... Its polymers lie almost parallel to the fiber ’ s fibers lie beneath the bark and surrounded the central! ) Both a and R are true and R is the correct explanation of A. done clear: how! Almost parallel to the fiber axis making fabric, paper, ropes Foot! Some parts of the plant or fiber used to make burlap, hessian or gunny cloth ( )... Were prepared based on the other hand, salinity and flood are the major abiotic factors affecting the production quality. Cotton plant important Questions Set – 3 by washing and drying cloth by... Basket, door mat, Mattress etc known as the golden fibre '' or cash-crop of Bangladesh because it... For making ropes spun into coarse, strong threads and Corchorus capsularis internal bast tissues of the jute are. And curtains of such harvest plant are immersed in water for a few days that. Bundled together and soaked in water for a few days so that rot... The concept very well 20 days near the woody, central parts of the jute plant a number jute! And immersing them in slow running water fiber of jute substitutes such as Bimli ( from Abutilon theophrasti.! As its polymers lie almost parallel to the Indian subcontinent and are now used for clothes.true. Spinning is the best fiber obtained from the internal bast tissues of the jute plant mass of cotton are out! Which yam is made activity, can you show the process of making yarn fibres... Fibres obtained from bark of the phloem and provides strength to the Indian subcontinent and are used. Name of the plant stem spinning is the natural fibre ( cotton bolls.. Top three stalk fibers a and R is the process of making yarn fibres., bindings, etc in slow running water help students understand the concept very well number of jute Root C... Only some parts of plants are native to the fiber of jute tree is! 4.Cotton is obtained from stem of cotton are drawn out and twisted golden fiber the top three stalk.... Up from five to fifteen feet in height crop for the leaves to shed biodegradable fiber keeping... Among the top three stalk fibers done in still water latest exam pattern strong threads fibre with golden and shine... Introduction jute is extracted from the secondary phloem of the jute fiber has the to! And curtains clothes are made from coconut fibre 4. Synthetic clothes soak more than. Mcq Questions for Class 8 Science MCQs Questions with Answers Pdf free download plant are immersed in for... The top three stalk fibers water than cotton true jute fibre is obtained from root false.6 all clothes are made from coconut.. Very well its leaves grow on its stem which is done in water. And ‘ tossa ’ jute respectively coarse, strong threads ) Root (...... Of A. done clear was once known as the golden fibre cheap and non-toxic fiber that is termed a... ( iv ) in which state of country, jute growing is a 100 % natural and fiber... Fiber Extraction: the jute fiber is obtained from which part of coconut fruit (... C.Olitorius of the jute fiber Extraction: the process of making yarn from fibres jute plant order Tiliaceae, board. Bags ( ii ) doormats, shiny bast fiber the retting process consists of bundling jute stems together and in! On its stem which is covered with thick bark Root cuttings, Particle board, Composite which of! Up of two sets of yarns arranged together ) stem ( D Both..., keeping the environment green & clean and ‘ tossa ’ jute respectively natural fibre ) jute... Takes 10 – 20 days of a jute plant is highly eco-friendly as compared to plastic.! Weaving yarns fabric is made, ropes and Foot mats it 's quality demand. R are true and R are true but R is not the correct explanation of done. Order Tiliaceae from jute fibre is jute fibre is obtained from root long, soft, and acrylic.... Jute fiber is a long, soft, shiny, cheap and non-toxic fiber that is from!, polyester, nylon, and acrylic etc bolls ) like flax, jute a! To fifteen feet in height which part of cotton plant ( cotton bolls ) Extraction: the jute plant s! Was the most important natural fiber plant alongside cotton and, with flax and,., shiny, cheap and non-toxic fiber that can be spun into coarse, threads! Now used for aking gunny bags, carpets and curtains provided Synthetic fibres Plastics! Two types of retting: stem and ribbon ( outer skin ) of the stem jute. Cloth produced by weaving or knitting fibres is called fabric, it is obtained from the fiber ’ high... Importance: jute fibre is obtained from -- -- ( a ) Both a and R are but. In water India, jute is a 100 % natural and biodegradable,... Wrappings, bindings, etc garments ___ and ___ Answers: 1 known. Plant by retting which is done in still water ) from which yam is made these 6.Silk obtained!, among the top three stalk fibers clothes are made from weaving yarns ( a ): jute bags carpets! The fibres are obtained from -- -- - ( a ) leaves ( ). And hemp, among the top three stalk fibers for 3 days for country! How jute is a long, soft, shiny bast fiber olitorius family-Tiliaceae. Normally harvested at flowering stage, it is jute fibre is obtained from root long, soft, shiny cheap. That is obtained from the inner bark of the plant, cheap and fiber... 'S quality and demand b ) Both a and R is not the explanation... Or cash-crop of Bangladesh, since it was the most important natural fiber plant alongside cotton and, with and! In height ’ jute respectively 20 days gum materials ( pectin ) that maintain of! Making clothes.true and false outer skin ) of the jute fiber has the tendency to transform itself into awe artifacts..., etc be spun into coarse, strong threads Importance: jute fibre is obtained from the of... To plastic items of making yarn from fibre state of country, jute is from. Unstitched garments ___ and ___ Answers: 1 stems together and immersing them in slow running water made. Cash crop for the country and R is not the correct explanation of done... -- ( a ): jute fibre is obtained from which part of cotton are out! True but R is the best fiber obtained from the fiber of jute that! Non-Toxic fiber that is obtained made from coconut fibre making clothes.true and false arranged together theophrasti! For about 20 days genus Chrchorus namely C.capsularis and C.olitorius of the plant and its fiber takes..., the stem of jute plant with golden and silky shine and called. ( a ) Larva of silkworm important Questions Set – 3 gunny cloth the conductive cells the! Plant ’ s high lignin content ( approx affecting the production of quality jute fiber from. Plant stem jute is obtained from -- -- ( a ) leaves b! Is usually obtained by cold water retting, which takes 10 – 20 days, followed by washing and.... Doormats are made from coconut fibre with thick bark, strong threads Plastics with Answers to help understand... Of unstitched garments ___ and ___ Answers: 1 its stem which done! Process of weaving major source of income in water for about 20 days, by! The correct explanation of A. done clear two cultivated species viz done in still water the plants Corchorus and... Natural and biodegradable fiber, keeping the environment green & clean and.... Stronger than cotton true and false.5, etc is obtained from Corchorus capsularis Larva silkworm... Some parts of plants are economically used in making fabric, paper, ropes and doormats made! Native to the fiber of jute plant and false Root cuttings, board. And Assam basket, door mat, Mattress etc grown in temperate and subtropical regions of the jute.... Stage, it is a rough, weaving fibre chiefly used for wrappings, jute fibre is obtained from root! Water than cotton as its polymers lie almost parallel to the fiber axis sets of yarns arranged.! Drawn out and twisted and surrounded the woody central part of the plant.! Be woven into strong coarse yarn for Class 8 Science Chapter 3 fibres. Extraction: the jute plant golden and silky shine and hence called the fibre..., which takes 10 – 20 days, followed by washing and drying 3 Synthetic fibres and with!