Question
Explain the structure of fructose.
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→a. Nucleotide and Nucleoside
b. Amylose and Amylopectin
(b) Write a reaction which shows that all the carbon atoms in glucose are linked in a straight chain.
(c) Write two differences between DNA and RNA.
(d) Amino acids can be classified as $\alpha-, \beta-, \gamma-, \delta-$ and so on depending upon the relative position of the amino group with respect to the carboxyl group. Which type of amino acids forms a polypeptide chain in proteins?
(e) What are any two good sources of vitamin A?
(f) What is anomeric carbon?
(g) What is the difference between a glycosidic linkage and a peptide linkage?
Sodium has a bcc structure with nearest neighbour distance 365.9pm. Calculate its density (Atomic mass of sodium = 23).
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