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Biomolecules

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Distinguish between Glycosidic bond and Peptide bond. Give one similarity

Differences between glycosidc and peptide bonds are -:

Glycosidic bond

Peptide bond

(1) Join monosaccharide units.

(2) Forms by the reaction between aldehyde or ketone group and alcohol groups.

(3) Links two carbon atoms through an oxygen atom.

(4) Found in polysaccharides

 

(1) Join amino acid units.

(2) Forms by reaction between amino acids and carboxyl groups.

(3) Links carbon and nitrogen atoms. 

(4) Found in polypeptides.


Both glycosidic and peptide bonds involve the elimination of water molecule that is both are dehydration processes.

Give the names of two monosaccharide sugars.

Fructose and glucose are two monosaccharides

What are major elements of a cell ?

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

What is the percentage of nucleic acids in cells ?

5 - 7 percent

Name one monosaccharide which provides energy ?

Glucose

What is the general formula of carbohydrates ?

The carbohydrate has a general formula - CnH2nOn Or (CH2O)n.