List of top Life Science Questions on Biochemistry

Tryptophan, tyrosine and phenylalanine, absorb ultraviolet light. Therefore, the protein rich in these amino acids strongly absorbs the light of wavelength ___________ due to aromatic side chain of these amino acids.
Which of the following are the types of column chromatography?
A. Paper chromatography
B. Affinity chromatography
C. Size exclusion chromatography
D. Ion-exchange chromatography
Choose the correct answer from the options given below:
A scientist wants to separate three protein molecules by ion-exchange chromatography. The pH of the mobile phase of the column is maintained in such a way that the protein molecule (A) has a net charge of -2, protein molecule (B) has a net charge of +2 and protein molecule (C) has a net charge of +1. Which one of the molecule/s will elute first from a cation-exchange resin?
Which of the following molecule/ion is not transported/buffered by hemoglobin?
Which of the following amino acids are essential amino acids in humans:
A. Leucine
B. Lysine
C. Isoleucine
D. Serine
Choose the correct answer from the options given below:
Match LIST-I with LIST-II
Choose the correct answer from the options given below:
The glycosidic bond between the monomers of sucrose is-
Match LIST-I with LIST-II
Choose the correct answer from the options given below:
The cationic antimicrobial peptide, histatin is found in human's_____________.
Which one of the following acid is hydrophobic with non polar side chain?
More recently discovered plant hormone, Jasmonates, play an important role both in plant defense and development, is derived from which fatty acid?
Which one of the following amino acids is involved in synthesis of hormone epinephrine in humans?