Podcast
Questions and Answers
Which component of the plasma membrane is responsible for acting as receptors for signal molecules?
Which component of the plasma membrane is responsible for acting as receptors for signal molecules?
- Cholesterol
- Carbohydrates
- Proteins (correct)
- Lipids
What is the function of carbohydrates on the outer surface of the cell membrane?
What is the function of carbohydrates on the outer surface of the cell membrane?
- Allow cells to recognize 'who is who' (correct)
- Prevent water-soluble substances from crossing
- Stiffen the membrane
- Form the basic structure of the membrane
Which component of the plasma membrane forms a boundary that prevents the crossing of water-soluble substances?
Which component of the plasma membrane forms a boundary that prevents the crossing of water-soluble substances?
- Lipids (correct)
- Carbohydrates
- Cholesterol
- Proteins
What is the typical structure of cholesterol in the plasma membrane?
What is the typical structure of cholesterol in the plasma membrane?
Which membrane component allows immune cells to recognize 'friend' from 'foe'?
Which membrane component allows immune cells to recognize 'friend' from 'foe'?
What is the role of proteins with different shapes in the plasma membrane?
What is the role of proteins with different shapes in the plasma membrane?
Which component of the plasma membrane further decreases its water solubility?
Which component of the plasma membrane further decreases its water solubility?
What is the function of lipids with hydrophobic tails in the plasma membrane?
What is the function of lipids with hydrophobic tails in the plasma membrane?
Why are carbohydrates found only on the outer surface of the cell membrane?
Why are carbohydrates found only on the outer surface of the cell membrane?
What function do proteins serve in joining cells to each other and to the extracellular matrix?
What function do proteins serve in joining cells to each other and to the extracellular matrix?
