Osmosis & Diffusion

During osmosis

• water moves from high to low concentration
• large or oddly shaped molecules move across a cell membrane
• water moves when energy is used
• proteins are built

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

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

Tags

NGSS.MS-LS1-2

Ideally, your cells should be in a(n) _______ solution

• Hypertonic
• Hypotonic
• Isotonic
• Cola

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NGSS.HS-LS1-3

Passive transport requires no

• concentration gradients
• osmosis
• motion
• energy

_______ regulates what enters and leaves a cell.  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Tags

NGSS.MS-LS1-2

The cell below is in a _________ solution.

• Hypotonic
• Hypertonic
• Isotonic

Tags

NGSS.MS-LS1-2

Which cell is placed into a hypotonic environment? 

• A
• B
• C
• D

Tags

NGSS.MS-LS1-2

What is diffusion?

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

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NGSS.MS-PS1-4

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

• Stay the same
• Shrink- get smaller
• Swell- get bigger

Tags

NGSS.MS-LS1-5

Permeable means

• things can pass through
• the concentration levels are different
• it is permanent
• things are stuck