Biomolecules - Organic Chemistry - Chemistry Previous Year Questions

\(\text { DNA } - \beta \text {-D-Ribose sugar }\)

\(\text { Glucocorticoids - Hyperthyroidism }\)

\(\text { RNA - Protein Synthesis }\)

\(\text { Vitamin A - Convulsions }\)

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

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

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The " D " in $\mathrm{D}(+)$-glucose represents the dextrorotatory nature of Glucose and ( + ) stands for its configuration

During denaturation of Proteins its 3- dimensional structure is destroyed because the primary, secondary and tertiary structures get destroyed due to rise in temperature

Except Glycine and Tryptophan all the other naturally occurring Amino acids are optically active

Glucose gets oxidised to Gluconic acid with $\mathrm{Br}_2(\mathrm{aq})$ which indicates that the carbonyl group in it is an Aldehydic group

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

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

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

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