Osmosis and Diffusion Review

What is diffusion?

• when molecules move 
• when molecules move from a high concentration to a low.
• no movement 
• molecules move everywhere

Tags

NGSS.MS-PS1-4

Where is there a low concentration of dye?

• at the bottom of cup
• in the color
• at the top of cup 
• no concenteraion gradient

Tags

NGSS.MS-PS1-2

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Tags

NGSS.MS-LS1-2

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

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

The substance being dissolved in a solution.

• sands
• solute
• solvent
• alloy

The substance in which a solute is dissolved

• sands
• solvent
• alloy
• negative particles

Solutions are composed of __________ .

• salts and solutes
• solvents and salts
• solutes and alloys
• solutes and solvents

Where is there a high concentration of water?

• in the flower
• cannot be determined by picture.
• in the vase
• in the leaves

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

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 (where the molecules are more crowded together) to a area of low concentration (where molecules are more spread apart)
  

Tags

NGSS.MS-LS1-2