10 Questions
Which of the following is NOT a function of the plasma membrane?
Digestive
What is the thickness range of the plasma membrane?
75-110Å
Which type of molecules can dissolve in the polar region of the plasma membrane and move rapidly across it?
Non polar molecules like O2
What controls the free passage of ions in and out of the cell?
Presence of proteins in the membrane
What is the insulating property of the plasma membrane compared to?
A charged condenser
Which of the following is NOT a major component of the plasma membrane?
Cholesterol
What are the three major components of eukaryotic membranes?
Glycerophospholipids, sphingolipids, cholesterol
Which part of the glycerophospholipids is in contact with the intra or extracellular aqueous phase?
Polar head groups
Where are carbohydrates bound in the plasma membrane?
To both proteins and lipids
Which leaflet of the plasma membrane do carbohydrates have a significant role in?
Outer leaflet
Test your knowledge of the plasma membrane and its functions in eukaryotic cells. Explore its dynamic structure, protective role, digestive functions, and selective permeability.
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