10 Questions
What is the primary component of the plasma membrane?
Phospholipids
Which part of the phospholipid molecule is hydrophilic?
Head
What type of substances do membrane proteins allow to pass through the plasma membrane?
Electrolytes and non-lipid soluble substances
What is the function of branched carbohydrate molecules attached to the outside of the cell?
Act as self markers
Which component influences the transfer of substances across the plasma membrane?
Phospholipids
What is the function of cholesterol in the plasma membrane?
Stabilizes the phospholipid bilayer
How do the differences in the arrangement of phospholipids influence the transfer of substances across the membrane?
They regulate the movement of hydrophilic and hydrophobic substances
What is the role of membrane proteins that extend through the plasma membrane?
They mediate the transport of water-soluble substances
How do carbohydrate molecules attached to the outside of the cell contribute to the cell's immunological identity?
They act as 'self' markers for immunological identity
What is the primary function of phospholipids in the plasma membrane?
Stabilize the membrane structure
Test your knowledge of plasma membrane structure and functions with this quiz. Learn about the composition of the plasma membrane, including phospholipids, proteins, and cholesterol, as well as its role in regulating the intracellular environment.
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