$$ \begin{array}{llll} A-X & B-Z & C-W & D-Y \end{array} $$

$$ \begin{array}{llll} A-Z & B-Y & C-X & D-W \end{array} $$

$$ \begin{array}{llll} A-X & B-Y & C-Z & D-W \end{array} $$

$$ \begin{array}{llll} A-Y & B-W & C-Z & D-X \end{array} $$

A long chain of amino acids linked with each other in a specific sequence

A folding of the polypeptide chains which exists as fibrous and globular

A long polypeptide chain which exists $\alpha$-helix and $\beta$-pleated sheet structure

Two or more polypeptide chains which exist as sub-units

$$ \text { DNA } - \beta \text {-D-Ribose sugar } $$

$$ \text { Glucocorticoids - Hyperthyroidism } $$

$$ \text { RNA - Protein Synthesis } $$

$$ \text { Vitamin A - Convulsions } $$

In D (+) Glucose, D represents the configuration similar to D-Glyceraldehyde

In monosaccharides, aldoses are reducing sugars while ketoses are non-reducing sugars

Polysaccharides are known as non-sugars as they are not sweet in taste

D (-) fructose forma a five membered ring known as furanose which is in analogy with the compound furan