Why are phospholipids a major part of the lipid bilayer in plasma membranes?
Correct answer: C. They are amphipathic in nature
- A. They have a nitrogenous base in the head region
- B. They have fatty acids in the tail region
- C. They are amphipathic in nature
- D. They have a phosphate group in the head region
Explanation
In summary, the major reason why phospholipids are a crucial part of the lipid bilayer in plasma membranes is their amphipathic nature (option c). The hydrophilic head with the phosphate group interacts with water, while the hydrophobic tails with fatty acids cluster together away from water, forming a stable and functional barrier that defines the plasma membrane's structure and function. Phospholipids are amphipathic molecules. This means that they have a hydrophilic, polar phosphate head and two hydrophobic fatty acid tails. These components of the phospholipids cause them to orientate themselves.
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