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Biomolecules
Explain the following:
Glucose responds Fehling solution and osazone, it does not react with Schiff’s base and sodium bisulphite.
Fehling and osazone reactions are irreversible and hence the equilibrium is shifted to restore the low concentration (0.02%) of open chain aldehydic form with the result glucose reacts with these reagents. On the other hand the Schiff and bisulphite reactions are reversible and hence the equilibrium of such reactions favours unreacted hemiacetal.
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The melting points and solubility of water of amino acids are generally higher than that of the corresponding halo acids. Explain.
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.
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