LS.2e Osmosis and Diffusion

What is a phospholipid bilayer?

• It what makes up the vacuole

• It's what makes up the cell membrane

• It is found only in plant cells

• It is found only in animal cells

What direction will the red water molecules move to?

• No net movement

• Will move to the left

• Will move to the right

Tags

NGSS.HS-PS1-5

Which of the following are methods of transport across membranes? Select all that apply!

• Diffusion

• Osmosis

• Condensation

• Precipitation

What is the movement of molecules from an area of high concentration to an area of low concentration called?

• Diffusion

• Active Transport

• Endocytosis

• Osmosis

What is passive transport?

• A process that requires energy to move substances across cell membranes

• A process that does not require energy to move substances across cell membranes

• A method of active transport in cells

• A type of cellular respiration

What is osmosis?

• The movement of water through a selectively permeable membrane

• Diffusion of molecules through a selectively permeable membrane

Look at this image-the water molecules are black. Select the best answer below:

• The water molecules are going to move to the right side.

• The water molecules are going to move to the left side.

• There is going to be no movement of the water molecules.

• The salt molecules are going to move to the right side.

Tags

NGSS.HS-PS1-5

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 is the main function of the cell membrane?

• To store genetic information

• To provide energy for the cell

• To control the movement of substances in and out of the cell

• To synthesize proteins

Someone sprayed perfume in the classroom and now the entire room smells like flowers-this is an example of:

• Active Transport

• Osmosis

• Diffusion

• Respiration