Proteins (Amino Acids, Structure, Denaturation): JEE Questions & Solutions

Identify the correct statements. A. Arginine and Tryptophan are essential amino acids. B. Histidine does not contain heterocyclic ring in…

The correct statements are: A. Activation energy for enzyme catalysed hydrolysis of sucrose is lower than that of acid catalysed…

The number of possible tripeptides formed involving alanine (ala), glycine (gly) and valine (val), where no amino acid has been used more…

In the given pentapeptide, find out an essential amino acid (Y) and the sequence present in the pentapeptide. Choose the correct answer…

The alpha-helix and beta-pleated sheet structures of a protein are associated with its:

Identify the essential amino acids from below: (A) Valine (B) Proline (C) Lysine (D) Threonine (E) Tyrosine Choose the correct answer from…

Identify the correct statement among the following:

Identify the pair of reactants that upon reaction, with elimination of HCl will give rise to the dipeptide Gly-Ala.

A dipeptide, “x”, on complete hydrolysis gives “y” and “z”; “y” on treatment with aqueous HNO₂, produces lactic acid. On the other hand,…

Given below are two statements: Statement (I): On hydrolysis, oligo peptides give rise to fewer number of α-amino acids while proteins give…

Which structure of protein remains intact after coagulation of egg white on boiling?

Type of amino acids obtained by hydrolysis of proteins is:

Total number of tripeptides possible by mixing of valine and proline is:

Number of cyclic tripeptides formed with 2 amino acids A and B is:

Following tetrapeptide can be represented as: (F, L, D, Y, I, Q, P are one-letter codes for amino acids)

A short peptide on complete hydrolysis produces 3 moles of glycine (G), 2 moles of leucine (L) and 2 moles of valine (V) per mole of…

A protein 'X' with molecular weight of 70,000 u, on hydrolysis gives amino acids. One of these amino acids is

Match List I with List II | List I (Natural Amino acid) | List II (One Letter Code) | |---|---| | (A) Arginine | (I) D | | (B) Aspartic…

Sulphur (S)-containing amino acids from the following are: (a) isoleucine (b) cysteine (c) lysine (d) methionine (e) glutamic acid Choose…

The one that does not stabilize 2^° and 3^° structures of proteins is:

In an oligopeptide named Alanylglycylphenylalanylisoleucine, the number of sp² hybridised carbons is.

The naturally occurring amino acid that contains only one basic functional group in its chemical structure is:

Which is not true for arginine?