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Exam (elaborations)

MT AAB Chemistry Questions and Answers 100% Solved

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  • AAB MT
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  • AAB MT

Exam of 14 pages for the course AAB MT at AAB MT (MT AAB Chemistry)

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  • August 20, 2024
  • 14
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • AAB MT
  • AAB MT
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Dreamer252
MT AAB Chemistry


Which of the four elements in proteins differentiated this class of substances from
carbohydrates and lipids? - answerNitrogen

Which of the proteins is soluble in water? - answerAlbumin

How are amino acids joined together to form a chainlike structure? - answerPeptide
bonding

Proteins may become denatured when subjected to mechanical agitation, heat, or
chemical treatment. What does denaturation of proteins refer to? - answerAlteration of
tertiary structure

Which aminoacidopathy is NOT caused by an enzyme deficiency? - answerCystinuria

These aminoacidopathies are caused by an enzyme deficiency: - answerMaple syrup
disease, phenylketonuria, and alkaptonuria

How many immunoglobulin classes are currently recognized? - answerFive

Which reagent is employed in the serum protein determination? - answerBiuret

Why should hemolyzed serum not be used for total protein analysis? -
answerHemoglobin is absorbed at the same wavelength as protein in the reagent

Which of the following is NOT true of the biuret reaction? - answerIt is relatively free
from interference from lipids and hemoglobin

Which of the following is true of the biuret reaction? - answerFollows 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.

Why is bromcresol purple the preferred indicator for albumin dye binding techniques? -
answerThere is less interference from pigment(s)

What is the most anodic protein on electrophoresis at pH 8.6? - answerAlbumin

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? - answer3.8/(.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? - answerActive 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? -
answerMonoclonal gammopathy

Glycoproteins and mucoproteins are usually bound to which substance? -
answerCarbohydrates

All of the following are glycoproteins: - answerCeruloplasmin, follicle-stimulating
hormone (FSH), and fibrinogen

All of the following are glycoproteins EXCEPT: - answerCryoglobulin

Which one of the following applies to cryoglobulins? - answerThey are temperature-
sensitive proteins

Which of the following statements is true of albumin? - answerIt is produced in the liver
and is water-soluble

Decreased alpha-fetoprotein values are associated with which condition? - answerDown
syndrome

Which one of the following proteins transports iron? - answerTransferrin

In acute renal failure, which nonprotein nitrogen rises the fastest? - answerBlood urea
nitrogen (BUN)

By the urease method, urea is enzymatically converted to which end product? -
answerAmmonia

Why can untreated urine be used for the determination of urea by the diacetyl
monoxomine method? - answerThe method is not measuring ammonia

An elevated creatinine value is most likely to be accompanied by which of these values?
- answerElevated BUN, 10X creatinine value

What is the classical method for creatinine reaction? - answerJaffe

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