a) i) On the basis of their behaviour on hydrolysis, carbohydrates are divided into three major classes.
1) Monosaccharides: These cannot be hydrolysed further into a simpler unit of polyhydroxy aldehyde or ketone.
e.g. Glucose, Fructose etc.
2) Oligosaccharides: These carbohydrates which on hydrolysis give 2-10 monosaccharide units.
3) Polysaccharides: These are high molecular mass carbohydrates which give many monosaccharide units on hydrolysis.
e.g. Starch, Cellulose, Glycogen etc.
b) Vitamin ‘C’ is a water-soluble vitamin and must be supplied regularly in the diet because it are readily excreted in urine and cannot be stored in our body.