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BCH 369 EXAM 4 with Questions Solved 100% Correct | Latest Upda
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BCH 369 EXAM 4 with QuestionsSolved 100% Correct | Latest Update
Which chemical group is present on the PLP cofactor that is not found on any
amino acid side
chain? A) aldehyde B) ketone C) hydroxyl D) amide E) imidazole - Answer A) aldehyde
Which of the molecules listed below DIRECTLY donates a nitrogen atom for the
formation of urea
during the urea cycle? A) creatine B) aspartate C) glutamate D) arginine E) adenine
- Answer B) aspartate
Mammalian cells derive chemical energy from a variety of "fuel" molecules which are
delivered to them in the bloodstream. Which one of the following is NEVER taken up
as a fuel molecule from
the bloodstream? A) Glucose B) Fatty acids C) Lactate D) Acetyl-CoA E) Acetoacetate
- Answer D) Acetyl-CoA
Which of the following is an important physiological role of bile salts?
A) They assist in the excretion of phospholipids.
C) They assist in the digestion of lipoproteins.
B) They assist in the digestion of lipids.
D) They assist in the excretion of proteins. - Answer B) They assist in the digestion
of lipids.
, Insulin is produced by liver cells known as hepatocytes.
A) True B) False - Answer B) False
In which cellular compartment are ketone bodies synthesized?
A) Mitochondrial intermembrane space.
C) Inner mitochondrial membrane.
B) Mitochondrial matrix.
D) Cytosol. - Answer B) Mitochondrial matrix.
Which of the following is correct regarding the conversion of 3-hydroxy-3-
methylglutaryl-CoA
(HMG-CoA) to mevalonate?
A) This reaction requires NADPH.
B) This reaction is regulated by cholesterol.
C) This is a key reaction in the synthesis of compounds that contain isoprenoid units.
D) A and B are correct.
E) A, B and C are correct. - Answer E) A, B and C are correct.
A molecule that signals vasodilation is _____, which is synthesized from the precursor
_____.
A) nitric oxide (NO), arginine
D) nitrous oxide, citrulline
B) nitrous oxide, arginine
E) none of the above
C) nitric oxide (NO), citrulline - Answer A) nitric oxide (NO), arginine
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