Cell Transport Vocabulary

What is the property of the plasma membrane that allows it to control movement of substances into or out of the cell?

• Selective permeability

• Phospholipid bilayer

• Transport protein

• Fluid mosaic model

What are the plasma membrane layers composed of phospholipid molecules arranged with polar heads facing the outside and nonpolar tails facing the inside called?

• Selective permeability

• Phospholipid bilayer

• Transport protein

• Fluid mosaic model

What is the term for a plasma membrane with components constantly in motion, sliding past one another within the lipid bilayer?

• Selective permeability

• Phospholipid bilayer

• Transport protein

• Fluid mosaic model

What is the net movement of particles from an area of higher concentration to an area of lower concentration called?

• Diffusion

• Dynamic equilibrium

• Facilitated diffusion

• Osmosis

What is the condition of continuous, random movement of particles but no overall change in concentration of materials called?

• Diffusion

• Dynamic equilibrium

• Facilitated diffusion

• Osmosis

What is the passive transport of ions and small molecules across the plasma membrane by transport proteins called?

• Diffusion

• Dynamic equilibrium

• Facilitated diffusion

• Osmosis

What is the diffusion of water across a selectively permeable membrane called?

• Isotonic solution

• Hypotonic solution

• Hypertonic solution

• Osmosis

What is a solution with the same concentration of water and solutes as inside the cell, resulting in the cell retaining its normal shape because there is no net movement of water called?

• Isotonic solution

• Hypotonic solution

• Hypertonic solution

• Osmosis

What is a solution that has a lower concentration of solute outside than inside the cell, causing water to flow into the cell by osmosis called?

• Isotonic solution

• Hypotonic solution

• Hypertonic solution

• Osmosis

What is a solution that has a higher concentration of solute outside than inside a cell, causing water to leave the cell by osmosis called?

• Isotonic solution

• Hypotonic solution

• Hypertonic solution

• Osmosis