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Class 10 Class 12
Describe the types of proteins on the basis of composition.

There are three types on the basis of composition :

1. Simple proteins 2. Conjugated proteins 3. Derived proteins.

1. Simple proteins. Simple proteins consist of only amino acids or their derivatives.

2. Conjugated proteins. These consist of simple proteins in combination with some non-protein component. The non-protein groups are called prosthetic groups.

3. Derived proteins. These are derived from pre-existing proteins either by partial hydrolysis or by coagulation.

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Give the names of two monosaccharide sugars.

Fructose and glucose are two monosaccharides
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Name one monosaccharide which provides energy ?

Glucose
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What is the general formula of carbohydrates ?

The carbohydrate has a general formula - CnH2nOn Or (CH2O)n.
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What is the percentage of nucleic acids in cells ?

5 - 7 percent
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What are major elements of a cell ?

Carbon, hydrogen, oxygen and nitrogen are the major elements of a cell.
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