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Which membrane lipid serves as a reservoir of messenger molecules for signal transduction?


A) taruocholic acid (TA)
B) phosphatidylserine (PS)
C) phosphatidylinositol 4,5-bisphosphate (PIP2)
D) thromboxane A2 (TXA2)
E) sphingomyelin (SM)

F) B) and C)
G) A) and B)

Correct Answer

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Humans make which omega-3 polyunsaturated fatty acid from alpha-linolenic acid (ALA) ?


A) eicosapentaenoic acid (EPA)
B) arachidonic acid (ARA)
C) docosahexaenoic acid (DHA)
D) both eicosapentaenoic acid (EPA) and arachidonic acid (ARA)
E) both eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA)

F) A) and B)
G) A) and C)

Correct Answer

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