Biomolecules — JEE Main PYQs

The correct match between Item I and Item II is

Item I
A. Allosteric effect
B. Competitive inhibitor
C. Receptor
D. Poison

Item II
P. Molecule binding to the active site of enzyme
Q. Molecule crucial for communication in the body
R. Molecule binding to a site other than the act …

In the following compound

The favourable site/s for protonation is/are

The correct match between Item I and Item II is

Item I
Item II
A. Ester test
P. Tyr
B. Carbylamine test
Q. Asp
C. Phthalein dye test
R. Ser
S. Lys

Glucose and Galactose are having identical configuration in all the positions except position.

Which of the following statements is not true about RNA?

Number of stereo centers present in linear and cyclic structures of glucose are respectively

Among the following compounds, which one is found in RNA?

Among the following compounds most basic amino acid is

Which of the given statements is INCORRECT about glycogen?

The correct structure of histidine in a strongly acidic solution $(\mathrm{pH}=2)$ is :

The peptide that gives positive ceric ammonium nitrate and carbylamine tests is:

The correct sequence of amino acids present in the tripeptide given below is

The increasing order of pKa of following amino acids in aqueous solution is Gly, Asp, Lys, Arg

Amylopectin is composed of

Glucose on prolonged heating with HI gives :

The predominant form of histamine present in human blood is (${\mathrm{pK}}_{\mathrm{a}}$, Histidine=6.0)

Which of the following compounds will behave as a reducing sugar in an aqueous KOH solution?

Thiol group is present in :

Which of the vitamins given below is water soluble?

Which one of the following bases is not present in DNA?

A compound with molecular mass 180 is acylated with ${\mathrm{CH}}_3\mathrm{COCl}$ to get a compound with molecular mass 390. The number of amino groups present per molecule of the former compound is:

Synthesis of each molecule of glucose in photosynthesis involves:

Which of the following compounds can be detected by Molisch's test ?

Which one of the following statements is correct ?

The presence or absence of hydroxyl group on which carbon atom of sugar differentiates RNA and DNA ?

Biuret test is not given by

The two functional groups present in a typical carbohydrate are :

$\alpha$-D-(+)-glucose and $\beta$-D-(+)-glucose are

The secondary structure of a protein refers to

The term anomers of glucose refers to

The pyrimidine bases present in DNA are

In both DNA and RNA, heterocyclic base and phosphate ester linkages are at-

Identify the correct statements regarding enzymes

Which base is present in RNA but not in DNA?

Insulin production and its action in human body are responsible for the level of diabetes. This compound belongs to which of the following categories?