10 Questions
What is the primary source of energy for simple and facilitated diffusion?
Kinetic energy
What type of bonding occurs between glycerol and water molecules in the cell membrane?
Hydrogen bonding
What is the reason for the low permeability of large, uncharged polar molecules through the cell membrane?
Their polar nature
What is the effect of a semi-permeable membrane on the rate of diffusion?
It slows down the rate of diffusion
What is the main reason for the impermeability of ions to the cell membrane?
Their charge and polarity
What percentage of the cell membrane is from the plasma membrane in the liver?
2%
What type of fatty acids has a presence of double bonds and is more permeable?
Unsaturated fatty acids
What is the main component of the lipid raft in the phospholipid bilayer?
Cholesterol
What is the function of the hydrophobic molecules in the cell membrane?
They are nonpolar molecules with no preference for any pole
What is the purpose of the phospholipid bilayer in the cell membrane?
To regulate what enters and leaves the cell
Learn about the cell membrane, also known as the plasma membrane, which covers all organelles in a cell. Discover the percentage of cell membrane in different organelles and its importance in cell physiology.
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