Which of the following is NOT a part of the hemoglobin (HEME-B) molecule? A) Iron B) Magnesium C) Histidine D) Pyrrole ring

What is the pI of arginine? pK1=2.83, pK2=8.99, pKR=11.49 A) 41            B) 7.16           C) 10.24           D) 10.74

When binding with oxygen, what type of binding curve does hemoglobin have? A) Linear B) Hyperbolic C) Sigmodial D) None of them

The pOH of a solution of NaOH is 11.30. What is the for this solution? A) 2.0 x 10-3 B) 3.5 x 10-5 C) 5.0 x 10-12 D) 4.0 x 10-12

Which amino acid is most likely to be found on the interior of a globular protein? A) Aspartate               B) Glycine                    C) Serine                     D) Cysteine

 In a highly basic solution, pH = 13, the dominant form of glycine is: A) NH2—CH2—COOH B) NH2—CH2—COO- C) NH2—+CH3—COO- D) +NH3—CH2—COOH E)  + NH3—CH2—COO-

 How is the secondary structure of a protein stabilized? A) Van der wall forces B) Hydrogen bonding C) Covalent bond D) Hydrophobic bond

Which amino acid is classified as basic?   A) Valine B) Glutamic acid C) Phenylalanine D) Lysine  

Which pair of amino acids absorbs the most UV light at 280 nm?   A) Ala and Gly B) Trp and Tyr C) Cys ad Asp D) Ala and Phe

The efforts of the American Colonization Society resulted in the creation of the African nation of