Podcast
Questions and Answers
What is the primary source of energy for simple and facilitated diffusion?
What is the primary source of energy for simple and facilitated diffusion?
- Electromagnetic energy
- Thermal energy
- Kinetic energy (correct)
- Potential energy
What type of bonding occurs between glycerol and water molecules in the cell membrane?
What type of bonding occurs between glycerol and water molecules in the cell membrane?
- Ion-dipole interactions
- Hydrophobic bonding
- Covalent bonding
- Hydrogen bonding (correct)
What is the reason for the low permeability of large, uncharged polar molecules through the cell membrane?
What is the reason for the low permeability of large, uncharged polar molecules through the cell membrane?
- Their ionic interactions
- Their size and charge
- Their hydrophobic nature
- Their polar nature (correct)
What is the effect of a semi-permeable membrane on the rate of diffusion?
What is the effect of a semi-permeable membrane on the rate of diffusion?
What is the main reason for the impermeability of ions to the cell membrane?
What is the main reason for the impermeability of ions to the cell membrane?
What percentage of the cell membrane is from the plasma membrane in the liver?
What percentage of the cell membrane is from the plasma membrane in the liver?
What type of fatty acids has a presence of double bonds and is more permeable?
What type of fatty acids has a presence of double bonds and is more permeable?
What is the main component of the lipid raft in the phospholipid bilayer?
What is the main component of the lipid raft in the phospholipid bilayer?
What is the function of the hydrophobic molecules in the cell membrane?
What is the function of the hydrophobic molecules in the cell membrane?
What is the purpose of the phospholipid bilayer in the cell membrane?
What is the purpose of the phospholipid bilayer in the cell membrane?
