MT AAB Chemistry Exam Questions with 100% verified Answers | Already passed|Graded A+

Which of the four elements in proteins differentiated this class of substances from carbohydrates and lipids? - Nitrogen Which of the proteins is soluble in water? - Albumin How are amino acids joined together to form a chainlike structure? - Peptide bonding Proteins may become denatured when subjected to mechanical agitation, heat, or chemical treatment. What does denaturation of proteins refer to? - Alteration of tertiary structure Which aminoacidopathy is NOT caused by an enzyme deficiency? - Cystinuria These aminoacidopathies are caused by an enzyme deficiency: - Maple syrup disease, phenylketonuria, and alkaptonuria How many immunoglobulin classes are currently recognized? - Five Which reagent is employed in the serum protein determination? - Biuret Why should hemolyzed serum not be used for total protein analysis? - Hemoglobin is absorbed at the same wavelength as protein in the reagent Which of the following is NOT true of the biuret reaction? - It is relatively free from interference from lipids and hemoglobin Which of the following is true of the biuret reaction? - Follows Beer's law for a reasonable range of protein, depends on the presence of at least two peptide linkages, and is insensitive to the low protein levels of urine.