Passive Transport

Which type of passive transport uses proteins to help molecules pass through the membrane?

• Diffusion
• Facilitated diffusion
• Osmosis
• All of the above

What is diffusion?

• The movement of particles from low conc. to high conc. in a given space
• The movement of particles from high conc. to low conc. in a given space

When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of

• Osmosis
• Diffusion
• Equilibrium
• Unbalanced

What is the definition of  Selective Permeability?

• The movement of materials across the cell membrane that requires NO ENERGY from the cell.
  
• The movement of materials through (or across) the cell membrane
  
• The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
• The movement of molecules from an area of high concentration to a area of low concentration 
  

What biomolecule is number one pointing to?

• Lipid

• Protein

• Nucleic Acid

• Carbohydrate

What type of transport uses a transport protein?

• Osmosis

• Facilitated diffusion

Which statement best describes passive transport?

• The movement of molecules from a high to low concentration without energy

• The movement of molecules from low to high concentration without energy

• The movement of water against the concentration gradient

• Passive transport requires ATP energy to go against the gradient

Osmosis is the movement of _______ from a high concentration to a low concentration.

• Glucose

• Sodium

• Water

• Smell

Which claim is supported by this osmosis image?

• There is an equal amount of water movement inside and outside the cell

• Water is moving out of the cell because the solute concentration is higher outside than inside

• Solutes are moving into the cell to balance it inside and outside

• None of these correctly describe the image

Which way will the water move in this solution?

• Water does not move into cells

• the same rate in and out

• Out of the cell

• Inside the cell