Multiple Choice
Where are peripheral proteins located in relation to the cell membrane?
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2. Cell Chemistry & Cell Components
Types of Membrane Proteins
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Where are peripheral proteins typically found in relation to the cell membrane?
A
Embedded within the lipid bilayer
B
Attached to the surface of the lipid bilayer
C
Floating freely in the cytoplasm
D
Spanning across the lipid bilayer
Verified step by step guidance1
Understand the structure of the cell membrane: The cell membrane is primarily composed of a lipid bilayer with embedded proteins.
Differentiate between integral and peripheral proteins: Integral proteins are embedded within the lipid bilayer, while peripheral proteins are not embedded but are attached to the surface.
Identify the location of peripheral proteins: Peripheral proteins are typically found attached to either the inner or outer surface of the lipid bilayer, not embedded within it.
Consider the function of peripheral proteins: They often play roles in signaling, maintaining the cell's shape, and interacting with the cell's environment.
Conclude that peripheral proteins are attached to the surface of the lipid bilayer, distinguishing them from integral proteins that span or are embedded in the bilayer.
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