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MLT Clinical Chemistry Final Test with Correct Answers

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  • MLT Clinical Chemistry

MLT Clinical Chemistry Final Test with Correct Answers What is the isoelectric point? - Answer-the pH of a solution where a molecule is neutral Which of the following methodologies measures absorbed light? a. liquid chromatography b. ELISA c. electrophoresis d. spectrophotometry - Answer...

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  • September 6, 2024
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  • MLT Clinical Chemistry
  • MLT Clinical Chemistry
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MLT Clinical Chemistry Final Test
with Correct Answers
What is the isoelectric point? - Answer-the pH of a solution where a molecule is neutral

Which of the following methodologies measures absorbed light?
a. liquid chromatography
b. ELISA
c. electrophoresis
d. spectrophotometry - Answer-spectrophotometry

Which of the following is not an amino acid?
a. leucine
b. serine
c. proline
d. theriosine - Answer-theriosine

There are ___________ non-essential and __________ essential amino acids. -
Answer-10, 10

Which essential amino acid helps to induce sleep and is a precursor for serotonin? -
Answer-tryptophan

Which of the following amino acids is found in higher concentration in HIV patients?
a. pyroleucine
b. serine
c. selenocycstine
d. guanine - Answer-selenocycstine

What is the cause of most aminacidpathies? - Answer-inherited genes

What makes an amino acid "essential"? - Answer-it is not made by the body

Homocystine levels are used to assess a patient's risk of what? - Answer-thrombolytic
event

The aminoacidpathy phenylketonuria (PKU) is an inability of the body to metabolize
which amino acid? - Answer-phenylalanine

What is a general treatment method for aminoacidpathies? - Answer-controlled diet

What is a characteristic symptom of isovaleric acadamia? - Answer-stinky, sweaty feet

,Patients suffering from maple syrup urine disease have a build-up of which amino
acids?
a. leucine, isoleucine, and valine
b. serine, tyrosine, and cysteine
c. glycine, alanine, and tryptophan
d. leucine, alanine, and serine - Answer-leucine, isoleucine, and valine

What make and amino acid "non-essential"? - Answer-it is made by the body

Which two aminoacidpathies can lead to the build up of ammonia? - Answer-
Arginosuccinic Aciduria and Citrullemia

Which of the following is an acceptable sample for amino acid analysis?
a. sweat collected in a strerile cup
b. whole blood in an EDTA tube
c. plasma drawn in a sodium heparin tube
d. serum drawn in a marble top tube - Answer-plasma drawn in a sodium heparin tube

What methodology is used to test for amino acids? - Answer-thin-layer chromatography
(TLC) &
high-performance liquid chromatography (HPLC)

Which of the following aminoacidpathies is caused by a cystathionine-Beta-synthase
deficiency:
a. homocysteinuria
b. maple syrup urine disease
c. alkaptonuria
d. PKU - Answer-homocysteinuria

Which aminoacidpathy is not caused by an enzyme deficiency, but is due to problems
with absorption? - Answer-cystineuria

On average how much of a protein's mass is attributed to nitrogen? - Answer-16%

What structural level consists of a(alpha)-helixes and B(beta)-pleasted sheets? -
Answer-secondary

All of the following are functions of proteins except?
a. acid-base balance
b. catalysts
c. energy
d. storage of genetic material - Answer-storage of genetic material

What pH range is required fro proteins in the body to remain soluble? - Answer-7.35-
7.45

, Prealbumin is a carrier protein for what in the serum? - Answer-throxyine

What is the serum protein that is present in the highest concentration? - Answer-
albumin

Elevated levels of a1 (alpha one)- fetoprotein in the fetus are indicative of what
condition? - Answer-spina bifida

Which of the following is not an a2(alpha)-globulin?
a. ceruloplasmin
b. tranferrin
c. haptoglobulin
d. a2(alpha) - Answer-tranferrin

Enzymes that can bind only one substrate and catalyze one reaction exhibit which type
of binding specificity? - Answer-Absolute binding

The rate of an enzymatic reaction will ___________________ for every 10 degrees C
temperature increase until the enzyme denatures. - Answer-Double

All of the following conditions may result in a rise in CKBB levels except.
a. Child birth
b Spinal chord injury
c. Myocardial infarction
d. Brain tumor - Answer-c. Myocardial infarction

Which two enzymes will show significant elevations with viral hepatitis? - Answer-AST &
ALT

GGT is an enzyme that can be used to help monitor the treatment of which patient
population? - Answer-recovering alcoholics

Digestive enzymes circulate in inactive forms called __________________. - Answer-
Zymogens

A patient comes to the ER with abdominal pain, the physician ordered an amylase,
lipase, and lipid panel. The triglyceride result is significantly elevated, how might this
effect the amylase and lipid levels? (thrown out) - Answer-Unchanged lipase, decreased
amylase

Which of the following is a function of glucose-6-phosphate dehydrogenase (G6PD)
a. prevents RBC lysis
b. inhibits CK
c. stimulates insulin secretion
d. catalyzes the conversion of glutamate - Answer-a. prevents RBC lysis

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