What are the characteristics of membrane lipids? I - They form lipid bilayers that characterize biological membranes II - They are amphipathic mol...
What are the characteristics of membrane lipids?
I - They form lipid bilayers that characterize biological membranes
II - They are amphipathic molecules
III - They have a hydrophilic part that faces the outside of the membrane and a hydrophobic part that faces the inside of the membrane
IV - They are composed of glycerophospholipids, galacto and sulfolipids, sphingolipids, sterols, and archeobacterial lipids
a) Only I, II and III are correct
b) Only II, III and IV are correct
c) Only I, II and IV are correct
d) All are correct
I - They form lipid bilayers that characterize biological membranes
II - They are amphipathic molecules
III - They have a hydrophilic part that faces the outside of the membrane and a hydrophobic part that faces the inside of the membrane
IV - They are composed of glycerophospholipids, galacto and sulfolipids, sphingolipids, sterols, and archeobacterial lipids
a) Only I, II and III are correct
b) Only II, III and IV are correct
c) Only I, II and IV are correct
d) All are correct
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Ed 
A alternativa correta é a letra "d) Todas estão corretas". As características dos lipídios de membrana são: I - Eles formam bicamadas lipídicas que caracterizam as membranas biológicas. II - Eles são moléculas anfipáticas. III - Eles têm uma parte hidrofílica que fica voltada para o exterior da membrana e uma parte hidrofóbica que fica voltada para o interior da membrana. IV - Eles são compostos por glicerofosfolipídios, galacto e sulfolipídios, esfingolipídios, esteróis e lipídios arqueobacterianos.
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