AAB MT CHEMISTRY EXAM WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+
Which of the four elements in proteins differentiated this class of substances from carbohydrates and
lipids? - (answer)Nitrogen
Which of the proteins is soluble in water? - (answer)Albumin
How are amino acids joined together to form a chainlike structure? - (answer)Peptide bonding
Proteins may become denatured when subjected to mechanical agitation, heat, or chemical treatment.
What does denaturation of proteins refer to? - (answer)Alteration of tertiary structure
Which aminoacidopathy is NOT caused by an enzyme deficiency? - (answer)Cystinuria
These aminoacidopathies are caused by an enzyme deficiency: - (answer)Maple syrup disease,
phenylketonuria, and alkaptonuria
How many immunoglobulin classes are currently recognized? - (answer)Five
Which reagent is employed in the serum protein determination? - (answer)Biuret
Why should hemolyzed serum not be used for total protein analysis? - (answer)Hemoglobin is absorbed
at the same wavelength as protein in the reagent
Which of the following is NOT true of the biuret reaction? - (answer)It is relatively free from interference
from lipids and hemoglobin
Which of the following is true of the biuret reaction? - (answer)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.
,AAB MT CHEMISTRY EXAM WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+
Why is bromcresol purple the preferred indicator for albumin dye binding techniques? - (answer)There is
less interference from pigment(s)
What is the most anodic protein on electrophoresis at pH 8.6? - (answer)Albumin
The total protein is 7.1 g/dL. The serum protein results are:
Albumin 53.0% 3.8 g/dL
Alpha1 3.6% 0.3 g/dL
Alpha2 11.0% 0.8 g/dL
Beta 17.6% 1.2 g/dL
Gamma 14.8% 1.1 g/dL
What is the A/G ratio? - (answer)3.8/(.3+.8+1.2+1.1) = 1.1
A serum protein electrophoretic pattern displaying a beta gamma bridge or broad gamma is seen in
which disease state? - (answer)Active cirrhosis
If an electrophoretic pattern shows 30% albumin, 4%-10% alpha-globulin, 4%-10% beta-globulin, and
45% gamma globulin, then what condition may exist in the patient? - (answer)Monoclonal gammopathy
Glycoproteins and mucoproteins are usually bound to which substance? - (answer)Carbohydrates
All of the following are glycoproteins: - (answer)Ceruloplasmin, follicle-stimulating hormone (FSH), and
fibrinogen
All of the following are glycoproteins EXCEPT: - (answer)Cryoglobulin
, AAB MT CHEMISTRY EXAM WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+
Which one of the following applies to cryoglobulins? - (answer)They are temperature-sensitive proteins
Which of the following statements is true of albumin? - (answer)It is produced in the liver and is water-
soluble
Decreased alpha-fetoprotein values are associated with which condition? - (answer)Down syndrome
Which one of the following proteins transports iron? - (answer)Transferrin
In acute renal failure, which nonprotein nitrogen rises the fastest? - (answer)Blood urea nitrogen (BUN)
By the urease method, urea is enzymatically converted to which end product? - (answer)Ammonia
Why can untreated urine be used for the determination of urea by the diacetyl monoxomine method? -
(answer)The method is not measuring ammonia
An elevated creatinine value is most likely to be accompanied by which of these values? -
(answer)Elevated BUN, 10X creatinine value
What is the classical method for creatinine reaction? - (answer)Jaffe
The measurement of creatinine is based on the formation of a yellow-red color and which reagent? -
(answer)Alkaline picrate
The creatinine clearance test is based on which assumption? - (answer)Creatinine passes into the
ultrafiltrate
AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+
Which of the four elements in proteins differentiated this class of substances from carbohydrates and
lipids? - (answer)Nitrogen
Which of the proteins is soluble in water? - (answer)Albumin
How are amino acids joined together to form a chainlike structure? - (answer)Peptide bonding
Proteins may become denatured when subjected to mechanical agitation, heat, or chemical treatment.
What does denaturation of proteins refer to? - (answer)Alteration of tertiary structure
Which aminoacidopathy is NOT caused by an enzyme deficiency? - (answer)Cystinuria
These aminoacidopathies are caused by an enzyme deficiency: - (answer)Maple syrup disease,
phenylketonuria, and alkaptonuria
How many immunoglobulin classes are currently recognized? - (answer)Five
Which reagent is employed in the serum protein determination? - (answer)Biuret
Why should hemolyzed serum not be used for total protein analysis? - (answer)Hemoglobin is absorbed
at the same wavelength as protein in the reagent
Which of the following is NOT true of the biuret reaction? - (answer)It is relatively free from interference
from lipids and hemoglobin
Which of the following is true of the biuret reaction? - (answer)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.
,AAB MT CHEMISTRY EXAM WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+
Why is bromcresol purple the preferred indicator for albumin dye binding techniques? - (answer)There is
less interference from pigment(s)
What is the most anodic protein on electrophoresis at pH 8.6? - (answer)Albumin
The total protein is 7.1 g/dL. The serum protein results are:
Albumin 53.0% 3.8 g/dL
Alpha1 3.6% 0.3 g/dL
Alpha2 11.0% 0.8 g/dL
Beta 17.6% 1.2 g/dL
Gamma 14.8% 1.1 g/dL
What is the A/G ratio? - (answer)3.8/(.3+.8+1.2+1.1) = 1.1
A serum protein electrophoretic pattern displaying a beta gamma bridge or broad gamma is seen in
which disease state? - (answer)Active cirrhosis
If an electrophoretic pattern shows 30% albumin, 4%-10% alpha-globulin, 4%-10% beta-globulin, and
45% gamma globulin, then what condition may exist in the patient? - (answer)Monoclonal gammopathy
Glycoproteins and mucoproteins are usually bound to which substance? - (answer)Carbohydrates
All of the following are glycoproteins: - (answer)Ceruloplasmin, follicle-stimulating hormone (FSH), and
fibrinogen
All of the following are glycoproteins EXCEPT: - (answer)Cryoglobulin
, AAB MT CHEMISTRY EXAM WITH CORRECT ACTUAL QUESTIONS
AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+
Which one of the following applies to cryoglobulins? - (answer)They are temperature-sensitive proteins
Which of the following statements is true of albumin? - (answer)It is produced in the liver and is water-
soluble
Decreased alpha-fetoprotein values are associated with which condition? - (answer)Down syndrome
Which one of the following proteins transports iron? - (answer)Transferrin
In acute renal failure, which nonprotein nitrogen rises the fastest? - (answer)Blood urea nitrogen (BUN)
By the urease method, urea is enzymatically converted to which end product? - (answer)Ammonia
Why can untreated urine be used for the determination of urea by the diacetyl monoxomine method? -
(answer)The method is not measuring ammonia
An elevated creatinine value is most likely to be accompanied by which of these values? -
(answer)Elevated BUN, 10X creatinine value
What is the classical method for creatinine reaction? - (answer)Jaffe
The measurement of creatinine is based on the formation of a yellow-red color and which reagent? -
(answer)Alkaline picrate
The creatinine clearance test is based on which assumption? - (answer)Creatinine passes into the
ultrafiltrate
