What is the difference between fibrous protein and globular prot

Subject

Chemistry

Class

CBSE Class 12

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 Multiple Choice QuestionsShort Answer Type

31.

Name the reagents used in the following reactions ? 

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32.

 Write the names and structures of the monomers of the following polymers

(i) Nylon-6, 6

(ii) PHBV

(iii) Neoprene

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33.

Predict the products of the following reactions :

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34.

How do you convert the following?

Phenol to anisole

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35.

How do you convert the following?

Propan-2-ol to 2-methylpropan-2-ol

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36.

How do you convert the following?

Aniline to Phenol

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37.

Write the mechanism of the following reaction: 2CH3-CH2-OH -->  CH3-CH2-O-CH2-CH3?

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38.

Write the equation involved in the acetylation of Salicylic acid.

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39.

Which one of the following is a disaccharide: Starch, Maltose, Fructose, Glucose ?

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40.

What is the difference between fibrous protein and globular protein?


Fibrous Proteins

Globular Proteins

They are fibre-like structures formed by polypeptide chains. Such proteins are held together by strong hydrogen and disulphide bonds.

The polypeptide chains in these proteins are folded around themselves, giving these proteins a spherical structure.

They are usually insoluble in water.

They are usually soluble in water.

They are structural proteins. For example, keratin is present in nails and hair, collagen is present in tendons and myosin is present in muscles.

They are functional proteins. For example, most enzymes and some hormones like insulin.

 

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