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Multiple Choice
Which of the following statements about phospholipids is false?
A
Phospholipids can form bilayers in aqueous environments.
B
Phospholipids are a major component of cell membranes.
C
Phospholipids contain a hydrophilic head and hydrophobic tails.
D
Phospholipids are composed of three fatty acid chains.
Verified step by step guidance
1
Understand the structure of phospholipids: Phospholipids are composed of a glycerol backbone, two fatty acid tails, and a phosphate group attached to a hydrophilic head.
Recognize the amphipathic nature of phospholipids: They have both hydrophilic (water-attracting) and hydrophobic (water-repelling) parts, which allows them to form bilayers in aqueous environments.
Identify the role of phospholipids in cell membranes: They are a major component of cell membranes, forming a bilayer that acts as a barrier to protect the cell.
Examine the statement about the number of fatty acid chains: Phospholipids typically have two fatty acid chains, not three. This is a key structural feature that differentiates them from triglycerides, which have three fatty acid chains.
Evaluate the given statements: The false statement is that phospholipids are composed of three fatty acid chains, as this contradicts the known structure of phospholipids.