Silk from Animals

Q.

Write various steps for processing fibers into wool.

Q.

Question 10

Silkworms secrete fibre made of
(a) fat
(b) cellulose
(c) protein
(d) nylon

Q.

What is a cocoon?

Q.

2. In India, sheep is reared in

1. Himachal Pradesh

2. Jammu and Kashmir

3. Gujarat

4. All of the above

Q. Which of these is known as “queen of fibres”?

1. Lac
2. Jute
3. Wool
4. Silk

Q.

Which of the following is not a type of silk?

1. Mulberry silk

2. Tassar silk

3. Mooga silk

4. Moth silk

Q.

Which following fibre is an example of natural fibres?

1. Rayon

2. Nylon

3. Polyester

4. Cotton

Q. Silkworms are a kind of worms which live on mulberry trees.

1. True
2. False

Q. Paheli went to the market to buy sarees for her mother. She took out a thread from the edges of the two sarees shown by the shopkeeper and burnt them. One thread burnt with a smell of burning hair and the other burnt with the smell of burning paper. Which thread is from a pure cotton saree and which one from a pure silk saree? Give a reason for your answer.

Q.

Silk fibres are made of ____.

1. Proteins

2. Carbohydrates

3. Amino Acids

4. Vitamins

Q. What is sericin? How is soften?

Q.

Which following synthetic fibre is made from a natural material?

1. Nylon

2. Rayon

3. Polyester

4. Acrylic

Q. Match the column 1 with 2 and select the correct option from the codes given below:

Colomn 1. Colomn 2
​​​​​​(Material). (Smell on burning)
(a) silk. (I) burning plastic
(b) wool. (ii) charred meat
(c)nylon. (iii)burning hair

Q.

Question 4

Silk fibre is obtained from
(a) fleece of sheep
(b) cotton ball
(c) cocoon
(d) shiny jute stalk

Q.

Question 11 (b)

Fill in the blanks in the following statements.
(b) Silk fibres come from ___ of silk ___

Q.

Out of the following, which are the two terms related to silk production? Sericulture, floriculture, moriculture, apiculture and silviculture.

Q. Wool can be obtained from ______.

1. Sheep, goat and caterpillar
2. Goat, cat and sheep
3. Yak, caterpillar and cat
4. Sheep, goat and yak

Q.

What do you call a long thread-like structure of wool fibre or silk fibre?

Q.

Question 2

Which of the following is not a type of silk?
(a) Mulberry silk
(b) Tassar silk
(c) Mooga silk
(d) Moth silk

Q.

Silk and woolen clothes are often damaged by

1. Flies

2. Insects

3. Bacteria

4. Animals

Q. Silk fibres are made of calories.

1. Proteins

2. Carbohydrates

Q. _____ is also called an artificial silk.

1. Wool
2. Acrylic
3. Nylon
4. Rayon

Q. Silk can be obtained from ________.

1. llama
2. sheep
3. alpaca
4. silkworm

Q.

How is silk produced from silkworms?

Q. What is silk? Give some characteristics of the silk fibre.

Q.

Which of the following is known as artificial silk?

1. Nylon

2. Rayon

3. Acrylic

4. Polyester

Q.

How do silk 🐛spin cocoons to make silk

Q.

The material similar to silk in appearance is

1. Nylon

2. Rayon

3. Polyester

4. Terylene

Q. do all worms produce silk, if not why?

Q. Silkworms secrete fibre made of

1. Fat
2. Cellulose
3. Protein
4. Nylon