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Class 10 Class 12
What is ‘magic 20’ ?

Magic 20 are 20  amino acids which take part in the synthesis of proteins.

What is the general formula of carbohydrates ?

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

Give the names of two monosaccharide sugars.

Fructose and glucose are two monosaccharides

What is the percentage of nucleic acids in cells ?

5 - 7 percent

What are major elements of a cell ?

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

Name one monosaccharide which provides energy ?

Glucose

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