PLANT FIBRES - JUTE

Assertion : Sclerenchyma fibres constitute the major mechanical tissue of the plants. Reason : The cells are thick walled and are made up of lignin.

Assertion : Bacteria are useful in leather industry and jute industry. Reason : Bacteria separate jute fibres and perform leather tanning.

(i) Why are only some parts of plants used for making ropes ? (ii) Cotton fibres are obtained from which part of cotton plant ? (iii) In which state of our country, jute growing is a major source of income.

Read the followings statements (a) Pitch is large and well developed in the roots of Zea mays. (b) Textile fibres of flax, hemp and jute are bast fibres.

Fibres are obtained from various parts of plants such as stem , leaves, fruit walls and seed walls. Fibres obtained from plants are economically used in making fabric, paper, ropes and gunny bags, etc. (i) Why only some parts of plants are used for making ropes ? (ii) Cotton fibres are obtained from which part of cotton plant ? (iii) From which part of coconut fruit coir (fibre) is obtained? (iv) In which state of country, jute growing is a major source of income.

Fill in the names of useful items made from jute fibres in Fig. 3.1. One such example is given.

Given are a few peculiar parts/structres found in plants. Cucurbita stem, potato tuber, walnut shell, jute fibres. Idetify the tissue responsible for the distinguishing eture in each part respectivley and select the correct option.