Osmosis

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

 An animal cell placed in a hypertonic (salty) solution will

• Stay the same

• Shrink- get smaller

• Swell- get bigger

What happened to the CELL WALL and the CELL MEMBRANE in these plant cells?

• Both the CELL WALL and CELL MEMBRANE shrunk

• Only the CELL WALL shrunk, the CELL MEMBRANE stayed the same

• The CELL WALL stayed the same, only the CELL MEMBRANE shrunk

• Both the CELL WALL and CELL MEMBRANE stayed the same

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

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

What is osmosis primarily involved with?

• Movement of proteins

• Movement of water

• Movement of oxygen

• Movement of glucose

What is osmosis?

• The diffusion of ions through a cell membrane.

• The active transport of water molecules.

• The movement of water through a selectively permeable membrane from a high to low concentration.

• The process by which plants absorb nutrients from the soil.

Osmosis occurs when there is a different concentration of solute molecules on each side of the membrane. There is a  beaker containing a 30% salt solution with a plastic bag containing a 10% salt solution. What will happen to the bag after about twenty minutes?

• Salt will move from the bag into the 30% salt solution.

• Salt will move from the 30% salt solution into the bag.

• Water will move from the 30% salt solution into the bag.

• Water will move from the bag into the 30% salt solution.

Tags

NGSS.MS-LS1-2

Osmosis

• diffusion of water molecules through a semi-permeable mebrane from an area of low concentration to an area of high concentration

• the diffusion of particles from an area of high concentration to an area of low concentration

• diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration

• the diffusion of particles from an area of low concentration to an area of high concentration

Tags

NGSS.MS-LS1-2

NGSS.MS-LS2-3

What is the process by which water moves across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration?

• Diffusion

• Active transport

• Osmosis

• Filtration