Diffusion and Osmosis (KS)

What is diffusion?

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

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

_______ regulates what enters and leaves a cell.  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

What is the definition of Osmosis?

• the movement of WATER molecules across the cell membrane.
  
• the state where molecules are equally concentrated (balanced) on both sides of the cell membrane.
  
• the process that brings LARGE particles INTO the cell through the cell membrane
  
• he movement of molecules across the cell membrane that REQUIRES ENERGY output from the cell
  

An animal cell placed in a hypertonic (salty) solution will

• Shrink
• Swell
• Stay the same

How many diamond molecules need to move to reach equilibrium?

• A net of 2 molecules move inside the cell.
• A net of 2 molecules move outside the cell.
• There is no net movement because the molecules are at equilibrium.
• The molecules do not move.

Just like Coke is a type of soda, __________ is a type of ___________.

• diffusion, osmosis
• concentration, equilibrium
• equilibrium, concentration
• osmosis, diffusion

You put a cell into a solution, the cell grows. Is the solution hypotonic or hypertonic to the cell? 

• hypertonic
• hypotonic
• isotonic
• not enough information

Tags

NGSS.MS-LS1-5

What type of solution allows water to enter the plant cell?

• hypotonic solution
• hypertonic solution
• isotonic solution
• active transport

Tags

NGSS.MS-LS1-2