Cell Membrane Osmosis Diffusion

Where is there a low concentration of dye?

• at the bottom of cup

• in the color

• at the top of cup 

• no concenteraion gradient

Tags

NGSS.MS-PS1-2

The picture below is an example of _________________ .

• osmosis

• isotonic

• diffusion

• active transport

Osmosis is the movement of _____ across a membrane.

• 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

The image shows beakers containing saltwater and dialysis tubing bags that are semipermeable (water can move through but not salt). Which bag would lose water through osmosis?

• A

• B

• C

Tags

NGSS.MS-LS1-2

Osmosis the movement of molecules from an area of ___ to ___?

• High concentration to low concentration

• Low concentration to high concentration

• High temperature to low temperature

• Low temperature to high temperature

Which process describes osmosis?

• Movement of solutes from high to low concentration

• Movement of water from low to high solute concentration

• Active transport of ions against the concentration gradient

• Exchange of gases through the cell membrane

Which diagram below best represents the movement of molecules in osmosis?

• 
• 
• 
• 

The image below represents a cell with a semipermeable membrane. The process of osmosis would explain the net movement of water into a cell if the initial percentage of

• protein was 35% inside the cell and 30% outside the cell.

• water was 95% inside the cell and 90% outside the cell.

• water was 90% inside the cell and 95% outside the cell

• protein was 30% inside the cell and 35% outside the cell.

Tags

NGSS.MS-LS1-2

The diffusion of water molecules through a selectively permeable membrane

• Diffusion

• Photosynthesis

• Active transport

• Osmosis