Tag: botany

Questions Related to botany

Which of the following statements is not true?

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Fabric is made of yarn.

  2. Jute is the outer covering of coconut.

  3. Polyester is a synthetic fibre.

  4. Silk fibre is obtained from silk worms.

Show answer
Correct Option: B
Explanation:

The outer covering of coconut is called coir.

Define fibres.

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. They are continuous filaments similar to thread

  2. Filaments made up of cellulose only

  3. Thread like filaments which are man made

  4. Thick rope like structures made up of tree bark

Show answer
Correct Option: A
Explanation:

Fibers  are a class of hair-like materials that are continuous "'filaments"' or are in discrete elongated pieces, similar to pieces of thread. They can be used as a component of composite materials. 

Which of the following is an animal fiber?

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Silk

  2. Avian

  3. Alpaca

  4. All of the above

Show answer
Correct Option: D
Explanation:

Animal fibers are generally made up of proteins. 

Examples include silk, wool, angora, mohair, and alpaca. Silk fiber collected from dried saliva of bugs or insects during the preparation of cocoons. 
Avian fibers from birds, for example, feathers and feather fiber. 

_____________ fibres are obtained from plants and animals.

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Natural 

  2. Plant

  3. Animal

  4. Synthetic

Show answer
Correct Option: A
Explanation:

Natural fibres are obtained from plants and animals.

Examples of natural fibres are wool, silk, etc.

___________________ are obtained from cotton plant and sheep respectively.

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Wool and cotton

  2. Cotton and wool

  3. Silk and wool

  4. Wool and silk

Show answer
Correct Option: B
Explanation:

Cotton is obtained from cotton plant and wool is obtained from sheep.

Animal fibers generally comprise of:

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. collagen.

  2. keratin.

  3. both $A$ and $B$.

  4. triglycerides.

Show answer
Correct Option: C
Explanation:

Animal fibers are natural fibers that consist largely of particular proteins. These proteins include collagen, keratin and fibroin.

examples include silk, sinew, wool, catgut, angora, mohair and alpaca.
The animal fibers used most commonly both in the manufacturing world as well as by the hand spinners are wool from domestic sheep and silk.

Which of the following fibre is not a natural fibre?

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Cotton

  2. Silk

  3. Nylon

  4. Jute

Show answer
Correct Option: C
Explanation:

Nylon is a man-made synthetic fibre prepared by the process of polymerisation. 


The monomer used to prepare Nylon is E-caprolactum. 

Hence the option C is correct.

Bed sheets, curtains, tents, parachutes etc are made from :

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. Natural fibres

  2. Synthetic fibres

  3. Yarn

  4. Plastics

Show answer
Correct Option: A,B
Explanation:

Fibres which are man-made are called synthetic fibres and which occurs naturally are called natural fibres. Rayon (synthetic fibre), when mixed with cotton (natural fibre), is used to making curtains, bedsheets etc. of clothes, ropes, seat-belts, curtains, sleeping bags, parachutes, tents etc.

Raw materials for most of the natural fabrics are obtained from :

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. water

  2. earth

  3. petroleum

  4. sky

Show answer
Correct Option: C
Explanation:

Some of the most common raw materials for the production of natural fabrics are cotton, wool, flax, ramie and wax. Since wax is a petroleum product, C is the correct answer.

Which of the following represents correct statement(s)?

botany fibre to fabric: plant fibre classification of fibres fibres history of fabric

  1. The fibers of some fabrics such as cotton, jute, silk and wool are obtained from plant and animals. These are called synthetic fibers.

  2. Cotton and jute are examples of fibers obtained from animals.

  3. Wool and silk fibers are obtained from plants.

  4. None of the above

Show answer
Correct Option: D
Explanation:

The correct statements will be-


(A) The fibers of some fabrics such as cotton, jute, silk and wool are obtained from plant and animals. These are called natural fibers.

(B) Cotton and jute are examples of fibers obtained from plants.

(C) Wool and silk fibers are obtained from animals.