Which one of the following statements are correct?

(i) Collagen is the most abundant protein in plant world and RuBisCo in the whole biosphere.

(ii) Cellulose is a homo polymer.

(iii) Inulin is a polymer of Fructose.

(iv) In polysaccharides chain, the left end is called reducing end and Right end is called nonreducing end.

(v) The starch-I is blue in colour.

(vi) Plant cell walls are made of cellulose polusaccharide.

(vii) Paper made from plant pulp and cotton fibre contains cellulose polysaccharide mainly.

(viii) Adenine and guanine nitrogenous bases constitute pyrimidine.

(ix) A nucleic acid containg deoxyribose is called DNA while that which contain ribose is called RNA.

(x) Secondary structure of protein is the sequence of amino acids in it.

(xi) In protein, the first amino acid is also called as N – terminal amino acid and last amino acid is called the C-terminal amino acid.

(xii) In proteins, only left-handed helices are observed.

Choose the correct option given below: