Amino acids and proteins II

Optical activity of amino acid is exhibited by

• asymmetric carbon atom

• symmetric carbon atom

What is the process of amino acid production?

• Duplication

• Translation

• Transamination

Amino acid with R symbol is

• arginine

• asparagine

• serine

Amino acid W is

Sickle cell anemia is caused by changes of the ______ amino acid in the β-hemoglobin chain.

• sixth

• seventh

• fifth

These are techniques to detect sickle cell EXCEPT

• Full blood picture

• Biuret test

• Genetic test

• HPLC

Oligopeptide consists of _______ amino acid units.

• a few

• 11 - 50

• more than 50

Condensation reaction creates a ________ bond between the _______ atom in the acid group and the _______ atom in the amine group.

• peptide, carbon, nitrogen

• hydrogen, carbon, nitrogen

• sulphur, nitrogen, carbon

• peptide, nitrogen, carbon

Local folding of the polypeptide chain into helices or sheets describes ________ protein structure.

• secondary

• primary

• tertiary

Hemoglobin molecule is an example of ________ protein structure.

• quaternary

• tertiary

• secondary