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Class 10 Class 12
What is meant by tertiary structure of proteins ?

Tertiary structure is the three-dimensional structure of a protein or nucleic acid. The folding of the the protein chain upon itself gives rise to the tertiary structure of the protein. It is very necessary for the biological activity of the protein.

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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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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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Name one monosaccharide which provides energy ?

Glucose
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Give the names of two monosaccharide sugars.

Fructose and glucose are two monosaccharides
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