Movement across the Cell Membrane

A balloon is filled with lemon juice and placed in a box. After 2 days Mary opens the box and the box smells like lemons because of ....

• osmosis

• endocytosis

• diffusion

• plasmolysis

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

A person would never have pure water put into their veins in a hospital because their cells would...

• Shrink/Dehydrate

• Expand

• Stay the same

Tags

NGSS.HS-LS1-3

If there is 5 percent water inside a cell and 5 percent water outside a cell

• more water will move inside the cell

• more water will move outside the cell

• There will be no net movement of water, it moves into and out of the cell at the same time.

Tags

NGSS.MS-LS1-2

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

• Shrink
• Swell
• Stay the same

Tags

NGSS.HS-LS1-3

Where will the water go?

• Into the cell

• Out of the cell

• Equally in & out - it's isotonic

• There is no water

Tags

NGSS.MS-LS1-2

NGSS.MS-LS2-3

A blood cell is placed into the jar, as seen. Where will the water go?

• Into the cell

• Out of the cell

• Equally in & out - it's isotonic

• The water is a lie

Tags

NGSS.MS-LS1-2

 In the given scenario what will happen?  An egg with a dissolved shell is placed in pure water for 48 hours.

• Water will move in and out of the cell equally, and the cell with neither shrink nor swell.
• The egg will gain water and swell.
• The egg will lose water and shrink.

Tags

NGSS.MS-LS1-2

If a cell is placed in a hypotonic solution, the cell will _______.

• stay the same
• swell (get bigger)
• shrink (get smaller)

Tags

NGSS.MS-LS1-5

Mrs. Crandall placed 2 tablespoons of salt into a glass of water and then placed a selectively- permeable membrane into the glass that divided the glass into left and right halves.  The left side is _______ to the right side.

• isotonic
• hypertonic
• hypotonic