Podcast
Questions and Answers
What is the primary function of the plasma membrane in a cell?
What is the primary function of the plasma membrane in a cell?
- To store genetic information
- To provide mechanical support to the cell
- To synthesize proteins and lipids
- To separate the internal cytoplasm from the external environment (correct)
What is the arrangement of the phospholipid bilayer in the plasma membrane?
What is the arrangement of the phospholipid bilayer in the plasma membrane?
- Nonpolar tails on the inner surface and hydrophilic polar heads on the outer surface
- Hydrophilic polar heads on the inner surface and nonpolar tails on the outer surface
- Nonpolar tails on the outer surface and hydrophilic polar heads on the inner surface
- Hydrophilic polar heads on the outer surface and nonpolar tails on the inner surface (correct)
What is the role of cholesterol in the plasma membrane?
What is the role of cholesterol in the plasma membrane?
- To synthesise proteins
- To increase the fluidity of the membrane (correct)
- To provide mechanical support to the membrane
- To reduce the fluidity of the membrane
What is the function of glycoproteins and glycolipids in the plasma membrane?
What is the function of glycoproteins and glycolipids in the plasma membrane?
What is the role of channel proteins in the plasma membrane?
What is the role of channel proteins in the plasma membrane?
What type of proteins are found on the inner surface of the plasma membrane?
What type of proteins are found on the inner surface of the plasma membrane?
What is the primary function of carrier proteins in the plasma membrane?
What is the primary function of carrier proteins in the plasma membrane?
Why are organ transplants often difficult?
Why are organ transplants often difficult?
What is the role of adenylate cyclase in the body?
What is the role of adenylate cyclase in the body?
What is the result of faulty plasma membrane growth hormone receptors?
What is the result of faulty plasma membrane growth hormone receptors?
What is the purpose of tight junctions between cells?
What is the purpose of tight junctions between cells?
What is the result of the failure of the liver to store glucose as glycogen?
What is the result of the failure of the liver to store glucose as glycogen?
