Diffusion Osmosis

In the cell pictured, which way would water move?

• Into the cell, causing the cell to swell

• Out of the cell, causing the cell to shrink

• In and out of the cell equally, keeping the shape the same

In the cell pictured, which way would water move?

• Into the cell, causing the cell to swell

• Out of the cell, causing the cell to shrink

• In and out of the cell equally, keeping the shape the same

Tags

NGSS.MS-LS1-2

A student noticed that placing wilted lettuce in a bowl of cool water caused the lettuce to become more crisp and firm. What is the best explanation for his observation?

• Water moved into the lettuce cells by active transport.

• Water moved into the lettuce cells by osmosis.

• Salt moved into the lettuce cells by diffusion.

• Water moved out of the lettuce cells by osmosis.

Where is there a low concentration of dye?

• at the bottom of cup

• in the color

• at the top of cup 

• no concenteraion gradient

_______ regulates what enters and leaves a cell.  

• Cell Membrane

• Nucleus

• Mitochondria

• Cytoplasm

Tags

NGSS.MS-LS1-2

Which of the following is the best definition for diffusion?

• It is the net movement of particles from an area of higher water potential to an area of lower water potential.

• It is the net movement of particles from an area of higher concentration to an area of lower concentration.

• It is the net movement of particles from an area of lower concentration to an area of higher concentration.

• It is the movement of particles from an area of higher concentration to an area of lower concentration.

Which of the following is the best definition for osmosis?

• It is the net movement of any particles from an area of higher water potential to an area of lower water potential.

• It is the net movement of water particles from an area of higher water potential to an area of lower water potential.

• It is the net movement of water particles from an area of lower solute concentration to an area of higher solute concentration.

• It is the movement of particles from an area of higher concentration to an area of lower concentration.

What do you think will happen to a plant cell when there is net movement of water into the cell? You may select more than 1 answer.

• It will increase in size.

• It will decrease in size.

• It will burst.

• The cell membrane will wrap around its contents.

Tags

NGSS.MS-LS1-2

NGSS.MS-LS2-1

Which of the following are examples of diffusion in everyday life?

• Smell of perfume across the room

• Placing a teabag in a glass of water

• Red ink on a shirt

• Water droplets on a cold surface

Which of the following are examples of diffusion in living organisms?

• Entry of oxygen and glucose into cells

• Entry of carbon dioxide through the stomata during photosynthesis

• Release of carbon dioxide through the stomata during respiration

Tags

NGSS.MS-LS2-3