Osmosis, Diffusion, and the Cell Membrane

The picture below is an example of _________________.

• osmosis
• isotonic
• diffusion
• active transport

Osmosis is the movement of _____ across a membrane from a higher concentration to a lower concentration.

• food

• energy

• oxygen

• water

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

What is diffusion?

• when molecules move

• when solute moves from a high concentration to a low concentration.

• no movement

• molecules move everywhere

Tags

NGSS.MS-LS1-2

_______ regulates what enters and leaves a cell.  

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Tags

NGSS.MS-LS1-2

In the given scenario what will happen? A cell is placed in distilled water for 48 hours.

• The cell will gain water and swell.

• Water will move in and out of the cell equally, and the cell with neither shrink nor swell.

• The cell 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

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

• Hypertonic
• Hypotonic
• Isotonic
• Cola

Tags

NGSS.HS-LS1-3

In a solution, salt is considered the _______.

• solvent
• solute
• solution

If a cell containing 5% salt is placed into a glass of water with 20% salt, the water is _______ compared to the cell.

• hypertonic

• hypotonic

• isotonic