Osmosis

The cell below is in a _____________ solution.

• Hypertonic
• Hypotonic
• Isotonic

Tags

NGSS.HS-LS1-3

Osmosis is the diffusion of _____ across a selectively permeable membrane.

• food
• air
• water
• oxygen

When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of ___________.

• osmosis
• equilibrium
• diffusion
• hypertonic

Vegetables are often sprayed with water in grocery stores.
What is the term for the water in the vegetable cells during this process?

• hypertonic
• isotonic
• hypotonic
• decreasing turgor pressure

Tags

NGSS.MS-LS2-1

If a shipwrecked individual drinks sea water, they will probably die.
How would you describe the solution compared to the cells?

• isotonic
• hypertonic
• hypotonic

Tags

NGSS.HS-LS1-3

What does selectively-permeable mean?

• The cell controls what passes in and out of the cell
• Nothing gets through
• The cell lets only large substances through

If a cell is placed in a hypotonic solution, the cell will _______.

• stay the same
• swell (get bigger)
• shrink (get smaller)

In which case would a cell most likely shrink?

• when placed in a solution containing a high salt concentration
• when placed in a isotonic solution
• when placed in a solution containing a low pH
• when placed in a solution containing distilled 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 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.

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