Osmosis Quiz

Osmosis is the movement of _______ across a semipermeable membrane.

• Water

• Solutes

• Salt

• Sugar

Osmosis is an example of...

• Active Transport

• Passive Transport

• Cellular Respiration

• Photosynthesis

In osmosis, water moves...(Select TWO answers)

• From high to low WATER concentration

• From low to high WATER concentration

• From high to low SOLUTE concentration

• From low to high SOLUTE concentration

Look at the picture. Through osmosis, water would move...

• To the RIGHT side of the membrane

• To the LEFT side of the membrane

• The water would not move

• It is impossible to tell

What would happen to a freshwater fish placed in saltwater?

• It would die because water would ENTER its cells, cause them to burst.

• It would die because water would LEAVE its cells, causing them to shrivel.

• Nothing would happen.

• It would die because freshwater fish are allergic to salt.

Which cell is in equilibrium?

• 
• 
• 
• 

Which BEST explains how plants take up water when it rains?

• They open the holes in their leaves (stomata) and drink it.

• The water is collected by their flowers and travels down the stem to the leaves.

• The roots act like little vacuums and suck up the water using air pressure.

• The water moves into the roots because it they have a lower water concentration inside

Which is NOT an example of osmosis?

• Slugs shrivel up and die when you pour salt on them because the water leaves their skin.

• You spray air freshener in one side of the room and smell it on the other side 5 minutes later because the scent has spread out

• You place a wilting plant in water and it starts to stand up again as water enters its cells

• You get thirsty when you eat salty foods because the water leaves your tongue and mouth cells.

What will happen to the cell in this beaker?

• It will gain water and blow up

• It will lose water and shrivel

• It will stay the same

• It will lose water then gain water again

In osmosis, the greater the DIFFERENCE in concentration between two sides of a membrane, the MORE water that will move. A cell containing 5% solute will LOSE the MOST water when placed in which solution?

• 1%

• 3%

• 5%

• 7%