Quiz 1: Chapter 11 correct answers
The three-dimensional spatial configuration of a single polypeptide chain as determined by disulfide linkages, hydrogen bonds, electrostatic attractions, and van der Waals forces is referred to as the: correct answers Tertiary Structure
Persons with Alkap...
The three-dimensional spatial configuration of a single polypeptide chain as determined
by disulfide linkages, hydrogen bonds, electrostatic attractions, and van der Waals
forces is referred to as the: correct answers Tertiary Structure
Persons with Alkaptonuria lack which enzyme? correct answers Homogentisate
Oxidase
The plasma protein mainly responsible for maintaining colloidal osmotic pressure in vivo
is: correct answers Albumin
The protein electrophoretic pattern of plasma, as compared to serum, reveals a: correct
answers Fibrinogen peak between the beta and gamma globulins
One advantage of high-resolution agarose electrophoresis over lower current
electrophoresis is: correct answers High-resolution procedures detect monoclonal and
oligoclonal bands at lower concentrations
High serum total protein with high levels of both albumin and globulins is usually seen
in: correct answers Dehydration
The biuret reaction for total serum proteins is based upon reaction of correct answers
Cu+2 ions with peptide bonds
Absence or a large decrease in the α1 peak in serum electrophoresis suggests correct
answers α1 -antitrypsin deficiency
The Guthrie screening test for increased serum phenylalanine is based on: correct
answers The microbiologic procedure in which phenylalanine counteracts the effects of
a metabolic antagonist on the growth of B. subtilis
Poor protein-caloric nutritional status is associated with: correct answers A decreased
level of prealbumin
The electrophoretic pattern of a plasma sample compared with a serum sample shows
a: correct answers Sharp fibrinogen peak
, The biuret reaction for the analysis of serum protein depends on the number of correct
answers Peptide bonds
In electrophoresis of all proteins, when the sample is placed in an electric field
connected to a buffer of pH 8.6, all of the proteins: correct answers Have a negative
charge
Maple Syrup Urine Disease is characterized by an increase in which of the following
urinary amino acids? correct answers Valine, Leucine, and isoleucine The cellulose
acetate electrophoresis at pH 8.6 of serum proteins will show an order of migration
beginning with the fastest migration as follows: albumin, alpha-1-globulin, alpha-2-
globulin, beta globulin, gamma globulin
Deamination: correct answers Removes the amine group from an amino acid
Which is an example of a peptide Bond? correct answers B
Quiz 2: Chapter 12 correct answers
Which NPN fraction constitutes nearly half of the NPN substances in the blood correct
answers Urea
Prerenal hyperuricemia is caused by: correct answers Congestive heart failure
A technologist obtains a BUN value of 61 mg/dL and serum creatinine value of 3.1
mg/dL on a patient. These results indicate: correct answers Renal Failure
A BUN of 9 mg/dL is obtained by a technologist. What is the urea concentration?
correct answers 19.3 mg/dL
Creatinine clearance is used to estimate the: correct answers Glomerular filtration rate
The Jaffe reaction is the basis for methods involving the quantitation of: correct
answers Creatinine
Creatinine is formed from the catabolism of: correct answers Creatine
In the Jaffe reaction, a red-orange chromogen is formed when creatinine reacts with:
correct answers Picric acid
Which of the following compounds give positive interference in kinetic creatinine
measurement by the Jaffé method? correct answers Acetoacetate and pyruvate
Substances known to increase results when measuring creatinine by the Jaffe reaction
include all of the following EXCEPT: correct answers Bilirubin
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