10 Questions
Which component of the plasma membrane is responsible for acting as receptors for signal molecules?
Proteins
What is the function of carbohydrates on the outer surface of the cell membrane?
Allow cells to recognize 'who is who'
Which component of the plasma membrane forms a boundary that prevents the crossing of water-soluble substances?
Lipids
What is the typical structure of cholesterol in the plasma membrane?
4-ring steroid structure
Which membrane component allows immune cells to recognize 'friend' from 'foe'?
Carbohydrates
What is the role of proteins with different shapes in the plasma membrane?
Acting as receptors for signal molecules
Which component of the plasma membrane further decreases its water solubility?
Cholesterol
What is the function of lipids with hydrophobic tails in the plasma membrane?
Preventing water-soluble substances from crossing
Why are carbohydrates found only on the outer surface of the cell membrane?
To allow cells to recognize each other
What function do proteins serve in joining cells to each other and to the extracellular matrix?
Acting as receptors for signal molecules
Explore the characteristics of integral membrane proteins, including their insertion into the lipid bilayer and the presence of hydrophobic and hydrophilic regions. Learn about transmembrane proteins that span the entire membrane and protrude on both sides.
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