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Biomolecules
Give any two reactions of glucose to show the presence of an aldehyde group.
(i) Glucose reacts with hydroxylamine to form glucose oxime
Glucose reacts with hydrogen cyanide to form cyanohydrin.
These reaction confirm the presence of a carbonyl group (>C=O) in glucose.
ii) Glucose gets oxidised to six carbon carboxylic acid (gluconic acid) on reaction with a mild oxidising agent like bromine water. This indicates that the carbonyl group is present as an aldehydic group.
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Where does the water present in the egg go after the boiling the egg?
What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?
When RNA is hydrolysed, there is no relationship among the quantities of different bases obtained. What does this fact suggest about the structure of RNA?
Give one example each of (i) Reducing sugar and (ii) Non-reducing sugar.
Name the anomers of glucose.
State two characteristics of monosaccharides.
Name a carbohydrate containing five carbon atoms per molecule.
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