Which statements about the makeup of biological membranes are true? 1) They are
ID: 68323 • Letter: W
Question
Which statements about the makeup of biological membranes are true?
1) They are composed of bilayers in which the polar head group of the lipid is oriented toward solvent and the lipophilic tails are pointed inward toward the interior of the membrane.
2) All fatty acids can form micelles.
3) The major classes of lipids that make up membranes include glycerophospholipids, sphingolipids, and glycoglycerolipids.
4) The hydrophobic interior is typically twice as thick as the polar, hydrophilic head groups.
a.Statements 1, 2, and 3 are true.
b.Statements 1, 2, and 4 are true.
c.Statements 2, 3, and 4 are true.
d.All of the listed statements are true
Explanation / Answer
The correct answer is all statements are true.
1) They are composed of bilayers in which the polar head group of the lipid is oriented toward solvent and the lipophilic tails are pointed inward toward the interior of the membrane.
2) All fatty acids can form micelles.
3) The major classes of lipids that make up membranes include glycerophospholipids, sphingolipids, and glycoglycerolipids.
4) The hydrophobic interior is typically twice as thick as the polar, hydrophilic head groups.
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