Diffusion/Osmosis 6th Grade Science

What is diffusion?

• when molecules move from low concentration to high concentration

• when molecules move from a high concentration to a low concentration

• molecules do not move

• molecules move everywhere

Tags

NGSS.MS-LS1-2

Where is there a low concentration of dye?

• at the bottom of cup

• in the purple dye

• at the top of cup

• there is no difference in concentration

The picture below is an example of _________________.

• osmosis

• a cell

• diffusion

• a beaker of unmixed liquids

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

Tags

NGSS.MS-ESS2-4

During osmosis

• water moves from high to low concentration

• large or oddly shaped molecules move across a cell membrane

• water moves from low to high concentraion

• proteins are built

semi-permeable means

• some things can pass through

• all things can pass through

• it is permanent

• it will never happen

The diffusion of water through a semi-permeable membrane is called?

• Osmosis
• Cell wall
• Diffusion
• Respiration

Where is there a high concentration of perfume?

• in the bottle

• on the hand

• in the room

• in the store he bought it from

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 
  

Tags

NGSS.MS-LS1-2

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

• unbalance

• irregularity

• Equilibrium

• death