Osmosis

Osmosis is the movement of ___________ across a selectively permeable membrane.

• Food

• Energy

• Oxygen

• Water

What is osmosis?

• Movement of water from equal concentrations

• Movement of water through a selectively-permeable membrane from high to low water concentration

• Movement of water high to low concentrations

• Movement of water through a selectively-permeable membrane from low to high water concentration

What in the cell is selectively permeable?

• Cell membrane

• Cell wall

• Cytoplasm

• Nucleus

Tags

NGSS.MS-LS1-2

Which of the following does not have a cell wall?

• Animal cells

• Bacteria cells

• Plant cells

• Fungi

The diagram shows two chambers with different concentration of molecules separated by a selectively permeable membrane. Predict what will happen to the water molecules.

• Move from B to A due to diffusion

• Move from B to A due to osmosis

• Move from B to A due to active transport

• Move from A to B due to osmosis

Tags

NGSS.MS-LS1-2

An animal cell placed in a hypertonic solution will

• Stay the same

• Shrink

• Swell

Tags

NGSS.HS-LS1-3

If a cell is placed in a hypotonic solution, the cell will __________

• stay the same

• swell

• shrink

Tags

NGSS.HS-LS1-3

Where will the water go?

• Into the cell

• Out of the cell

• Equally in and out

• There is no water

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 this 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

If the dots represent sugar, what direction will the water flow?

• Into the cell

• Out of the cell

Tags

NGSS.HS-LS1-3