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CBSE Gujarat Board Haryana Board

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Class 10 Class 12
Write a note on coenzymes.

Co-enzymes are organic compounds which are bound to the enzymes to make them catalytically active. They bind to the enzyme transiently at the time of catalysis and help in the reaction. They also act as co-factors in a number of enzyme catalysed reactions. For examples. Nicotinamide adenine dinucleotide (NAD), Nicotinamide adenine dinucleotide phosphate (NADP), Flavin mononucleotide (FMN), Flavin adeine dinucleotide (FAD) and co-enzyme A (CoA) are important co-enzymes.


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

What is the general formula of carbohydrates ?

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

Name one monosaccharide which provides energy ?


Give the names of two monosaccharide sugars.

Fructose and glucose are two monosaccharides