EASY
Earn 100

Match List-I with List-II.

  List-I
Natural Amino 
acid		   List-II
One Letter 
Code
(A) Arginine (I) D
(B) Aspartic acid (II) N
(C) Asparagine (III) A
(D) Alanine (IV) R

Choose the correct answer from the options given below:

77.36% studentsanswered this correctly

Important Questions on Biomolecules

MEDIUM
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Consider the following sequence for aspartic acid:


Question Image

The pH (Isoelectric point) of aspartic acid is:
MEDIUM
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Assume a spherical mammalian cell has a diameter of 27 microns. If a polypeptide chain with alpha-helical conformation has to stretch across the cell, how many amino acids should it be comprised of?
MEDIUM
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Observation of "Rhumann's purple" is a confirmatory test for the presence of:
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids

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

EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
The amino acid which is basic in nature is
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
The non-essential amino acid among the following is:
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Thiol group is present in:
MEDIUM
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Which among the following formulae represents the ω-amino caproic acid?
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Among the following, the essential amino acid is:
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
The number of peptide bonds in the compound

Question Image is
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Among the following compounds most basic amino acid is:
HARD
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
The correct structure of histidine in a strongly acidic solution pH=2 is
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Which of the following is not an essential amino acid?
MEDIUM
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Which of the following tests cannot be used for identifying amino acids?
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Which of the following is a basic amino acid?
HARD
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
A tetrapeptide is made of naturally occurring alanine, serine, glycine and valine. If the C-terminal amino acid is alanine and the N-terminal amino acid is chiral, the number of possible sequences of the tetrapeptide is
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
The enzyme responsible for the convension of proteins to α -amino acids is
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Which of the following statements is not correct?
MEDIUM
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
Among the α -amino acid-threonine, tyrosine, methionine, arginine and tryptophan, those which contain an aromatic group in their side chain are
EASY
Chemistry>Organic Chemistry>Biomolecules>Proteins and Amino Acids
In a protein molecule various amino acids are linked together by: