MCQ Book Questions

Q50500. Two nitrogen atoms of Urea in the urea cycle come from

Q50501. Pyruvic acid can be obtained by transami- nation of alanine with

Q50502. In the synthesis of 1 molecule of urea in the Kreb’s Henseleit cycle the number of AMPs formed is

Q50503. Formation of melanin from tyrosine requires the action of

Q50504. In one of the following the quality of the protein synthesized is affected:

Q50505. Citrulline is an intermediate of

Q50506. The semialdehydes are formed under the action of enzymes characterised as

Q50507. Which of the following statement about the peptide bond is true?

Q50508. Isoenzymes for a given reaction

Q50509. The highest concentration of cystine can be found in

Q50510. One round of Edman degradation of the peptide: H2N— Gly—Arg—Lys—Phe— Asp— COOH would result in which of the following structures or their phenyl isothi- ocyanate derivatives?

Q50511. Which of the following techniques is used to separate proteins based upon differ- ences in their mass?

Q50512. The greatest buffering capacity at physiologic pH would be provided by a protein rich in which of the following amino acids ?

Q50513. Which one of the amino acids could serve as the best buffer at pH 7?

Q50514. Which one of the following statements concerning glutamine is correct?

Q50515. One of the given example is an amino acid:

Q50516. The lone pair of electrons at one of the ring nitrogens in the given amino acid makes a potential ligand, which is important in binding the iron atoms in hemoglobin:

Q50517. The amino acid which is not optically active is

Q50518. Optically active compounds are capable of

Q50519. The reference compound for absolute confi- guration of optically active compound is