Biomolecules

This is a Short Answer Type Questions as classified in NCERT Exemplar

The sugar moiety of a nucleoside is linked to a phosphoric acid unit, ideally at the 5? position, to form a nucleotide.

The structure is depicted in the diagram below.

This is a Short Answer Type Questions as classified in NCERT Exemplar

n-hexane is produced when glucose is cooked with HI for a lengthy amount of time. The reaction is depicted in the diagram below.

n-hexane has six carbon atoms joined in a straight chain because glucose has six carbon atoms.

This is a Short Answer Type Questions as classified in NCERT Exemplar

Lactose sugar is a naturally occurring sugar found in milk. D galactose and D glucose, two monosaccharide molecules, are linked together. As a result, disaccharides are the name given to these oligosaccharides.

This is a Multiple Answer Type Questions as classified in NCERT Exemplar

Correct options are a and d.

Enzymes are protein molecules that operate as biocatalysts in the body, facilitating chemical processes. The pace of the reaction is accelerated by these catalysts.

This is a Multiple Answer Type Questions as classified in NCERT Exemplar

Correct options are a and b.

Purines are made up of a six-membered nitrogen-containing ring joined with a five-membered nitrogen-containing ring.

Purine bases are guanine and adenine, while pyrimidine bases are thymine and uracil.

 

Hence (a) and (b) are correct choices for this question.

This is a Multiple Answer Type Questions as classified in NCERT Exemplar

Correct options are b and d.

Fibrous protein is generated when the polypeptide chain runs parallel and is held together by hydrogen and disulphide bonds.

This is a Multiple Answer Type Questions as classified in NCERT Exemplar

Correct options are a and c.

The cyclic structure of ribose and fructose is five-membered (furanose structures). Like compound furans, they have a five-membered ring.

This is a Multiple Answer Type Questions as classified in NCERT Exemplar

Correct options are a, b and c.

Lysine is an amino acid with the structural formula of (a).

(b) Because the number of groups (two) is more than the number of -COOH groups (one), it is a basic amino acid (one).

Because it is created in human bodies, it is a non-essential amino acid.

This is a Multiple Answer Type Questions as classified in NCERT Exemplar

Correct options are b and d.

Acidic amino acids are divided into two groups, one -COOH group against the other - NH₂ group. As a result, the acidic amino acids (b) and (d) are the only ones among the supplied structures.

This is a Multiple Answer Type Questions as classified in NCERT Exemplar

Correct options are b and d.

Amylopectin and Glycogen are the correct choices since they are carbohydrate storage forms found in animal tissues, whereas amylose is made up of 80-85% starch. It's also a branched glucose polymer that branches via C₁ - C₆  glycosidic linkage.