Osmosis, Diffusion, and the Cell Membrane

Which process is shown in the diagram?

• osmosis
• diffusion

Which substance moves during osmosis?

• food

• energy

• oxygen

• water

Which of the following is the best definition of 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

Which cell structure regulates what enters and leaves a cell?

• Cell Membrane
• Nucleus
• Mitochondria
• Cytoplasm

Tags

NGSS.MS-LS1-2

A cell model is placed in distilled water for 48 hours. What will happen?

• Water will move into the cell and it will gain mass.

• Water will move in and out of the cell equally, and the mass will stay the same.

• Water will move out of the cell and it will lose mass.

Which solution has an equal concentration of solutes in and around the cell?

• Hypertonic
• Hypotonic
• Isotonic

Tags

NGSS.HS-LS1-3

What is the salt in a solution?

• solvent
• solute
• solution

If a cell containing 5% salt is placed into a glass of water with 20% salt how does the water solute concentration compare to the cell.

• hypertonic

• hypotonic

• isotonic

If the mass of a cell increases when it is placed in a solution what type of solution is around the cell?

• hypertonic

• isotonic

• hypotonic

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1