Assertion (A): Jute fibre is obtained from the flower of a jute plant. Anatomy of Jute Root (C ... Economic Importance: Jute fiber is obtained from the secondary phloem of the plant. Jute fibre is obtained from two cultivated species viz. Ans. It is a coarse fiber. In this process, fibres from a mass of cotton are drawn out and twisted. The latter is a bast fibre; i.e., it is obtained from the inner bast tissue of the bark of the plant’s stem. There are two types of retting: stem and ribbon. Fig. Flax fiber is 10–100 cm in length. Jute fibre is obtained from jute plant by the following steps: Retting: Jute fibre is obtained from the stalks of the jute plant. knitting changes yarn into fabric. Key words : Jute fibre, Jute stick, Jute Caddies, Root cuttings, Particle board, Composite. For example, polyester, nylon, and acrylic etc. The fiber’s high lignin content (approx. C. capsularis and C. olitorius. Explanation: The jute fiber comes from the stem and ribbon (outer skin) of the jute plant. Explain the process of making yarn from fibre. Q6. A) Both A and R are true and R is the correct explanation of A. done clear. Jute fibre is obtained from the stem of the jute plant. Jute is a kind of fiber that is termed as a golden fiber. Q6. Cotton wool . Question 2. Jute" is the name of the plant or fiber used to make burlap, hessian or gunny cloth. (D) Patsun 5.Synthetic fibres are (A) Rayon (B) Nylon and Polyster (C) Rayon, Nylon, and Polyester. Jute is obtained from a plant called ___ 5. It is obtained from the bark of jute plants. Patsun 5. 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. Write few items that are made from coconut fibre. JUTE A NATURAL FIBER • Jute is a natural fibre with golden and silky shine and hence called The Golden Fibre. Answer: The jute plant is normally harvested at flowering stage. 4. Q8. Jute was once known as the golden fibre of Bangladesh, since it was the most important cash crop for the country. . 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. (C) Bolls of cotton flowers. With the help of an activity, can you show the process of weaving? It is a kind of long, soft, and lustrous fiber.
(iv) In which state of country, jute growing is a major source of income. Jute is obtained from the stem of jute plant. 6th Science Chapter 3 Important Questions Set – 3. Name two items that are made from coconut fibre. Introduction Jute is a common term used for both the plant and its fiber. Jute fibres are obtained from the stem of jute plant. Existing Grading system. Jute fabrics formed the ‘sackcloth’ of Biblical times and are now used for wrappings, bindings, etc. Jute fiber has the tendency to transform itself into awe inspiring artifacts and handicrafts. 2. coir is used for making clothes.true and false. Jute fibre is obtained from stem of the jute plants. Q7. 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 is obtained from the plants Corchorus olitorius and Corchorus capsularis. Ans. Q5. Although, Jute is a fibre obtained from the bark of the jute plant. Jute fibre is. The fibres are separated from the secondary phloem of the plant by retting which is done in still water. Its leaves grow on its stem which is covered with thick bark. What is oil lamps wick made of? Ans. Jute is extracted from the fiber of jute tree that is obtained after prolonged soaking in water. Jute dicotyledenous fibre-yielding plant of the genus Corchorus, order Tiliaceae. Question: Explain how jute is obtained from the jute plant. 4.Cotton is obtained from----(A) Larva of sikworm. Jute is obtained from which part of the jute plant? They are composed of cellulose and lignin. On the other hand, salinity and flood are the major abiotic factors affecting the production of quality jute fiber. B) Both A and R are true but R is not the correct explanation of A. done clear. 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. In flooded land, plants are up rooted. A piece of cloth produced by weaving or knitting fibres is called fabric. 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. Q 6. Jute fibre is obtained from stem of jute plant. What are the fruits of cotton plants called? The fibers are bound together by gum materials (pectin) that maintain bundles of fibers drawn with non-fibrous tissue of jute bark. In India, jute is grown in West Bengal, Bihar and Assam. Answer: Spinning is the process of making yarn from fibres. Jute is the best fiber obtained from the internal bast tissues of the plant stem. The Jute Fiber Extraction: The jute plant’s fibers lie beneath the bark and surrounded the woody central part of the stem. Q7: Name two items that are made from Jute fibre. ___ is an example of dietry fibre. Jute fibers are obtained from two species of Corchorus, namely C capsularis and C. olitorius. Q 5. Q4. It supports the conductive cells of the phloem and provides strength to the stem. Generally, jute plants grow up from five to fifteen feet in height. These are known as ‘white’ and ‘tossa’ jute respectively.
(ii) Cotton fibres are obtained from which part of cotton plant ? 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 . The retting process consists of bundling jute stems together and immersing them in slow running water. 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. obtained from root of jute plant done clear. 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. " 3. When the jute plant is at its flowering stage, it is harvested. Ropes, basket, door mat, Mattress etc. 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. 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. • 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.
(i) Why only some parts of plants are used for making ropes ? Q5. Jute. Jute is a long, soft, shiny bast fiber that can be spun into coarse, strong threads. Shawl and Dhoti. (D) None of these 6.Silk is obtained from-----(A) Larva of silkworm. In India, jute is mainly grown in West Bengal, Bihar and Assam. Cotton bolls . Question 5: Name two items that are made from coconut fibre. These plants are native to the Indian subcontinent and are grown throughout the year. Reason (R): Jute fibre is a natural fibre. Answer: (i) Jute Sack bags (ii) Ropes Q8: Name two items that are made from coconut fibre. true and false.6 all clothes are made from weaving yarns. The fibers are first extracted by retting. Flax is one of the oldest textile fibers. Once, jute fibre was widely known as the "golden fibre" or cash-crop of Bangladesh because of it's quality and demand. The harvested plants are left in field for 3 days for the leaves to shed. Cotton fibre is obtained from fruits of cotton plant (cotton bolls). III. Cellulose 4. Jute has a reliability and is highly eco-friendly as compared to plastic items. This is a 100% natural and biodegradable fiber, keeping the environment green & clean. Answer: Fibre is a thread like a strand from which yam is made. Check the below NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download. Answer. Jute is a rough, weaving fibre chiefly used for aking gunny bags, carpets and curtains. Jute 3. Ans. Jute is the most important natural fiber plant alongside cotton and, with flax and hemp, among the top three stalk fibers. Question 6. Question 6: Explain the process of making yarn from fibre. 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. Flax fiber is obtained from the inner bark of the stem of a plant grown in temperate and subtropical regions of the world. Answer: Coir is the natural fibre obtained from coconut husk. (B) Hair of sheep. 4. synthetic clothes soak more water than cotton true and false.5. The fibres are then separated from the stem by hand. Name two items that are made from coconut fibre. Its diameter varies from 40 to 80 μm. Flax is stronger than cotton as its polymers lie almost parallel to the fiber axis. The fibres are then separated from the stem in long strands and washed in clear, running water. 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. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. B) cultivated during summer season done clear. Ans. 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. Silk and wool 2. 1. cotton fibres are obtained from the stem of cotton plant. 3. wool is made up of protein. Fibres obtained from plants are economically used in making fabric, paper, ropes and gunny bags, etc. obtained from the stem of the jute plant.
(iii) From which part of coconut fruit coir (fibre) is obtained? Mention the states name where jute plant harvested. SOLUTION: Ropes and doormats are made from coconut fibre. Jute fiber is a long, soft, shiny, cheap and non-toxic fiber that can be woven into strong coarse yarn. Answer: (i) Baskets (ii) Doormats . 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). 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 yarn? What is fibre? We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. true and false. Answer the following questions: Question 1. A fabric is made up of two sets of yarns arranged together. There are also a number of jute substitutes such as Bimli (from Hibiscus cannabinus) and China jute (from Abutilon theophrasti). In India, the plant is cultivated in the states of West Bengal, Bihar, Uttar Pradesh, Assam, Meghalaya, Orissa, and Tripura. The plant has not branched. Answer: The process of making yarn from fibres is called spinning. It is obtained from Corchorus capsularis or C. olitorius (family-Tiliaceae). The jute fibres are mainly concentrated near the woody, central parts of the stalk. Jute. true and false. Then, the stem of such harvest plant are immersed in water for a few days so that they rot. true and false. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. Give two example of unstitched garments ___ and ___ Answers: 1. After harvesting, the stalks of jute plants are bundled together and soaked in water for about 20 days. What is fabric? (A) Leaves (B) Root (C) Stem (D) Both leaves and stem.
(iv) In which state of country, jute growing is a major source of income. Jute is obtained from the stem of jute plant. 6th Science Chapter 3 Important Questions Set – 3. Name two items that are made from coconut fibre. Introduction Jute is a common term used for both the plant and its fiber. Jute fibres are obtained from the stem of jute plant. Existing Grading system. Jute fabrics formed the ‘sackcloth’ of Biblical times and are now used for wrappings, bindings, etc. Jute fiber has the tendency to transform itself into awe inspiring artifacts and handicrafts. 2. coir is used for making clothes.true and false. Jute fibre is obtained from stem of the jute plants. Q7. 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 is obtained from the plants Corchorus olitorius and Corchorus capsularis. Ans. Q5. Although, Jute is a fibre obtained from the bark of the jute plant. Jute fibre is. The fibres are separated from the secondary phloem of the plant by retting which is done in still water. Its leaves grow on its stem which is covered with thick bark. What is oil lamps wick made of? Ans. Jute is extracted from the fiber of jute tree that is obtained after prolonged soaking in water. Jute dicotyledenous fibre-yielding plant of the genus Corchorus, order Tiliaceae. Question: Explain how jute is obtained from the jute plant. 4.Cotton is obtained from----(A) Larva of sikworm. Jute is obtained from which part of the jute plant? They are composed of cellulose and lignin. On the other hand, salinity and flood are the major abiotic factors affecting the production of quality jute fiber. B) Both A and R are true but R is not the correct explanation of A. done clear. 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. In flooded land, plants are up rooted. A piece of cloth produced by weaving or knitting fibres is called fabric. 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. Q 6. Jute fibre is obtained from stem of jute plant. What are the fruits of cotton plants called? The fibers are bound together by gum materials (pectin) that maintain bundles of fibers drawn with non-fibrous tissue of jute bark. In India, jute is grown in West Bengal, Bihar and Assam. Answer: Spinning is the process of making yarn from fibres. Jute is the best fiber obtained from the internal bast tissues of the plant stem. The Jute Fiber Extraction: The jute plant’s fibers lie beneath the bark and surrounded the woody central part of the stem. Q7: Name two items that are made from Jute fibre. ___ is an example of dietry fibre. Jute fibers are obtained from two species of Corchorus, namely C capsularis and C. olitorius. Q 5. Q4. It supports the conductive cells of the phloem and provides strength to the stem. Generally, jute plants grow up from five to fifteen feet in height. These are known as ‘white’ and ‘tossa’ jute respectively.
(ii) Cotton fibres are obtained from which part of cotton plant ? 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 . The retting process consists of bundling jute stems together and immersing them in slow running water. 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. obtained from root of jute plant done clear. 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. " 3. When the jute plant is at its flowering stage, it is harvested. Ropes, basket, door mat, Mattress etc. 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. 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. • 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.
(i) Why only some parts of plants are used for making ropes ? Q5. Jute. Jute is a long, soft, shiny bast fiber that can be spun into coarse, strong threads. Shawl and Dhoti. (D) None of these 6.Silk is obtained from-----(A) Larva of silkworm. In India, jute is mainly grown in West Bengal, Bihar and Assam. Cotton bolls . Question 5: Name two items that are made from coconut fibre. These plants are native to the Indian subcontinent and are grown throughout the year. Reason (R): Jute fibre is a natural fibre. Answer: (i) Jute Sack bags (ii) Ropes Q8: Name two items that are made from coconut fibre. true and false.6 all clothes are made from weaving yarns. The fibers are first extracted by retting. Flax is one of the oldest textile fibers. Once, jute fibre was widely known as the "golden fibre" or cash-crop of Bangladesh because of it's quality and demand. The harvested plants are left in field for 3 days for the leaves to shed. Cotton fibre is obtained from fruits of cotton plant (cotton bolls). III. Cellulose 4. Jute has a reliability and is highly eco-friendly as compared to plastic items. This is a 100% natural and biodegradable fiber, keeping the environment green & clean. Answer: Fibre is a thread like a strand from which yam is made. Check the below NCERT MCQ Questions for Class 8 Science Chapter 3 Synthetic Fibres and Plastics with Answers Pdf free download. Answer. Jute is a rough, weaving fibre chiefly used for aking gunny bags, carpets and curtains. Jute 3. Ans. Jute is the most important natural fiber plant alongside cotton and, with flax and hemp, among the top three stalk fibers. Question 6. Question 6: Explain the process of making yarn from fibre. 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. Flax fiber is obtained from the inner bark of the stem of a plant grown in temperate and subtropical regions of the world. Answer: Coir is the natural fibre obtained from coconut husk. (B) Hair of sheep. 4. synthetic clothes soak more water than cotton true and false.5. The fibres are then separated from the stem by hand. Name two items that are made from coconut fibre. Its diameter varies from 40 to 80 μm. Flax is stronger than cotton as its polymers lie almost parallel to the fiber axis. The fibres are then separated from the stem in long strands and washed in clear, running water. 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. Answer: The fibres which are made from chemical substances or which are not obtained from the plant and animal sources are called synthetic fibres. B) cultivated during summer season done clear. Ans. 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. Silk and wool 2. 1. cotton fibres are obtained from the stem of cotton plant. 3. wool is made up of protein. Fibres obtained from plants are economically used in making fabric, paper, ropes and gunny bags, etc. obtained from the stem of the jute plant.
(iii) From which part of coconut fruit coir (fibre) is obtained? Mention the states name where jute plant harvested. SOLUTION: Ropes and doormats are made from coconut fibre. Jute fiber is a long, soft, shiny, cheap and non-toxic fiber that can be woven into strong coarse yarn. Answer: (i) Baskets (ii) Doormats . 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). 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 yarn? What is fibre? We have provided Synthetic Fibres and Plastics Class 8 Science MCQs Questions with Answers to help students understand the concept very well. true and false. Answer the following questions: Question 1. A fabric is made up of two sets of yarns arranged together. There are also a number of jute substitutes such as Bimli (from Hibiscus cannabinus) and China jute (from Abutilon theophrasti). In India, the plant is cultivated in the states of West Bengal, Bihar, Uttar Pradesh, Assam, Meghalaya, Orissa, and Tripura. The plant has not branched. Answer: The process of making yarn from fibres is called spinning. It is obtained from Corchorus capsularis or C. olitorius (family-Tiliaceae). The jute fibres are mainly concentrated near the woody, central parts of the stalk. Jute. true and false. Then, the stem of such harvest plant are immersed in water for a few days so that they rot. true and false. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. Give two example of unstitched garments ___ and ___ Answers: 1. After harvesting, the stalks of jute plants are bundled together and soaked in water for about 20 days. What is fabric? (A) Leaves (B) Root (C) Stem (D) Both leaves and stem.