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Multiple Choice
Which of the following is not a component of the plasma membrane?
A
Phospholipids
B
Proteins
C
Cholesterol
D
Nucleic acids
Verified step by step guidance
1
Understand the structure of the plasma membrane: The plasma membrane is primarily composed of a phospholipid bilayer, which provides the basic structure and barrier for the cell.
Identify the components of the plasma membrane: The main components include phospholipids, proteins, and cholesterol. These elements contribute to the membrane's fluidity, stability, and functionality.
Phospholipids: These are the fundamental building blocks of the plasma membrane, forming a bilayer with hydrophilic heads facing outward and hydrophobic tails facing inward.
Proteins: Integral and peripheral proteins are embedded within or attached to the phospholipid bilayer, playing roles in transport, signaling, and structural support.
Cholesterol: This lipid molecule is interspersed within the phospholipid bilayer, helping to modulate membrane fluidity and stability. Nucleic acids, such as DNA and RNA, are not part of the plasma membrane structure.