"Lipids are amazing molecules as they are so diverse in chemical structure and function. Comment upon the statement.

Viruses did not find a place in classification'. Comment upon the statement.

Evoluation has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.

Specificity of enzymes is variable'. Comment upon the statement

'Respiratory pathway is an amphibolic pathway'. Comment upon the statement.

"Life results due to a relationship of molecules and is not a property of any one molecule.' Comment upon the staterrient.

It is indeed difficult to decide the proper place of fungi in the living world'. Comment upon the statement.

The tetrahalides of carbon do not form complexes, whereas the tetrahalides of the other elements of group 14 do so. Comment on the statement and explain.

Consider the following statements: (a) DNA is a long polymer of ribonucleotides (b) only one strand of DNA acts as a template for the synthesis of a new strand of DNA during replication (c) tRNA is also called adaptor molecule (d) DNA performs both autocatalytic and heterocatalytic functions. Which of the given statements are correct?

(a) write the name and molecular formula of an organic compound having its name suffixed with -ol and having two carbon atoms in the molecule. With the help of a balanced chemical equation indicate what happens when it is heated with excess of conc. H_(2)SO_(4) ? (b) What is substitution reaction ? Give an example