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Class 10 Class 12
What are heterocyclic aminoacids ?

Heterocyclic amino-acids are those which have nitrogen in ring structure other than carbon e.g. Adenine, guanine, cytosine and thymine.

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 general formula of carbohydrates ?

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

What is the percentage of nucleic acids in cells ?

5 - 7 percent

Name one monosaccharide which provides energy ?

Glucose

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