(i) Draw the pyranose structure of glucose.

(ii) What type of linkage is present in proteins?

(iii) Give one example each for water-soluble vitamins and fat-soluble vitamins.

(i) The six membered cyclic structure of glucose is called pyranose structure.

(ii) Peptide bond or peptide linkage is present in proteins. Chemically, peptide linkage is an amide formed between –COOH group and –NH₂ group as shown in figure given below.

(iii) Example of water-soluble vitamins are B group vitamins and vitamin C. Examples of fat-soluble vitamins are vitamins A, D, E and K.