Osmosis

Osmosis is the movement of _____ across a membrane.

• food
• energy
• oxygen
• water

Tags

NGSS.HS-LS2-3

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

Where is there a high concentration of water?

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

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 
  

What will happen to the organism in this situation? Salty water is poured onto eggplant.

• Water will move out of the eggplant cells and the cells will shrink.
• Water will move out of the eggplant cells and the cells will swell.
• Water will move into the eggplant cells and the cells will swell.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-5

In the given scenario what will happen?  An egg is placed in distilled water (no solutes) 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.

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

• Shrink
• Swell
• Stay the same

Tags

NGSS.HS-LS1-3

In the diagram, there is a larger concentration of water inside the plasma membrane. Which way will the water molecules move during osmosis?

• Out of the cell, so the cell shrinks.
• Out of the cell, so the cell swells.
• Into the cell, so the cell shrinks.
• Into the cell, so the cell swells.

Tags

NGSS.HS-LS1-3

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

• Hypertonic
• Hypotonic
• Isotonic
• Cola

Tags

NGSS.HS-LS1-3

If you enjoy rubbery carrots (not stiff or rigid), then place them in .....

• Cold Water
• Hot Water
• Distilled Water
• Salt Water

Tags

NGSS.MS-LS1-5

NGSS.MS-PS1-4

NGSS.MS-PS3-4