BIOCHEM 551 Quiz 5 Re-Updated- Louisiana University

 Question 1
1.5 out of 1.5 points
Which of these amino acids is synthesized endogenously in humans and should not
be an essential dietary component?.
Selected Cysteine
Answer:

 Question 2
1.5 out of 1.5 points
The role of Protein 4.1 in the membranous skeleton of erythrocytes;
Selected Stabilize the spectrin-actin junction
Answer:

 Question 3
1.5 out of 1.5 points
A patient is suspected of having a urea cycle defect because he has
hyperammonemia, homocitrullinuria and hyperornitinemia, the most likely defect is;
Selected ORNT-1 deficiency
Answer:

 Question 4
1.5 out of 1.5 points
You suspect that a patient has an inborn error of the urea cycle but does not present
with hyperammonemia and encephalopathy, the defective enzyme is likely;
Selected Arginase
Answer:

 Question 5
1.5 out of 1.5 points
In the post-translational modification of the lysosomal enzyme – β galactosidase in
the golgi apparatus, which of these amino acids provides the site for its N-linked
glycosylation?
Selected Asparagine
Answer:

 Question 6
1.5 out of 1.5 points
In a patient with recurrent vaso-occlusive crisis due to sickle cell disease, the amino
acid _______ can be administered to increase the plasma level of the homotrophic
Hb ligand ______ to stabilize the relaxed state of Hb and reduce vaso-occlusion;
Selected Arginine and nitric oxide
Answer:

 Question 7
1.5 out of 1.5 points
Which of these RBC membrane proteins is not implicated in the molecular
pathology of HS?




This study source was downloaded by 100000848649392 from CourseHero.com on 06-14-2022 08:37:02 GMT -05:00


https://www.coursehero.com/file/58894211/Quiz-5-551docx/

, Selected Glycoprotein 3.1
Answer:

 Question 8
1.5 out of 1.5 points
Which of these is a likely consequence of hereditary spherocytosis?


Selected Cholelithiasis (Gallsto
Answer: nes)

 Question 9
1.5 out of 1.5 points
This enzyme is present in the kidneys and is highly active in chronic metabolic
acidosis. It produces of ammonia which is used to remove H+ as ammonium ions in
the urine?
Selected Glutaminase
Answer:

 Question 10
1.5 out of 1.5 points
Except by genetic analysis, carbamoyl phosphate synthase I deficiency is
indistinguishable from;
Selected NAG synthase deficiency
Answer:

 Question 11
1.5 out of 1.5 points
In Citrulleinemia Type II caused by ___________, patients present with
hyperammonemia, hyperornithinemia and homocitrullinemia;
Selected Citrin
Answer:

 Question 12
1.5 out of 1.5 points
Ammonia that enters the urea cycle for excretion comes from two sources –
glutamine and ______?
Selected Aspartate
Answer:

 Question 13
1.5 out of 1.5 points
Which of these protein defects is least likely to contribute to the pathophysiology of
HS?
Selected VCAM-1
Answer:

 Question 14
1.5 out of 1.5 points
A patient born with a combination of hereditary persistence of fetal Hb and sickle


This study source was downloaded by 100000848649392 from CourseHero.com on 06-14-2022 08:37:02 GMT -05:00


https://www.coursehero.com/file/58894211/Quiz-5-551docx/