Multiple Choice
In the context of the lipid bilayer, what is the primary role of cholesterol in the plasma membrane?
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8. Membrane Structure
The Lipid Bilayer
Multiple Choice
In the context of the lipid bilayer, what is another name for the cell membrane?
A
Extracellular matrix
B
Plasma membrane
C
Cell wall
D
Nuclear envelope
Verified step by step guidance1
Understand that the lipid bilayer is a fundamental structural component of the cell membrane, providing a barrier that separates the inside of the cell from the external environment.
Recall that the cell membrane is also commonly referred to by another name that emphasizes its role as the boundary of the cell.
Identify that the term 'plasma membrane' is synonymous with the cell membrane, highlighting its function in regulating the passage of substances in and out of the cell.
Differentiate the plasma membrane from other structures listed, such as the extracellular matrix (which is outside the cell), the cell wall (found in plants, fungi, and some prokaryotes), and the nuclear envelope (which surrounds the nucleus).
Conclude that the correct alternative name for the cell membrane, based on its lipid bilayer structure and function, is the 'plasma membrane'.
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