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Biochemistry

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Set 19 Lipid Metabolism Ii Membrane Lipidssteroidsisoprenoidsand Eicosanoids

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Question 1

(Multiple Choice)

Free
Tay-Sachs disease is caused by a deficiency of __________ which results in an accumulation of ___________.

A)sphingomyelinase;sphingomyelin
B)ceramidase;ceramide
C) α\alpha -galactosidase A;GM1 ganglioside
D)lysosomal N-acetylhexosaminidase A;GM2 ganglioside
E) β\beta -glucosidase;glucosylceramide

Answer

Question 2

(Multiple Choice)

Free
Which of the following is used to activate phosphatidic acid for conversion to various phospholipids?

A)ATP
B)UTP
C)CTP
D)GTP
E)TTP

Answer

Question 3

(Multiple Choice)

Free
In prokaryotes,_________ is used exclusively as the precursor for phosphatidic acid while in eukaryotes,_________is one of three possible precursors.

A)diacylglycerol;glycerol-3-phosphate
B)glycerol-3-phosphate;dihydroxyacetone phosphate
C)dihydroxyacetone phosphate;glycerol-3-phosphate
D)3-phosphoglycerate;diacylglycerol
E)dihydroxyacetone phosphate;diacylglycerol

Answer