Cell Homeostasis

Which direction will water flow in across this semipermeable membrane? The purple molecules are solutes (like salt)

• Side A

• Side B

Tags

NGSS.MS-LS1-2

What would happen if you gave a patient an IV of pure water?

• Nothing will happen to their red blood cells

• Their red blood cells would swell and burst

• Their red blood cells would shrink and shrivel

Tags

NGSS.MS-LS1-2

diffusion of water across a selectively permeable membrane is called

• Cellular Transport

• Homeostasis

• Osmosis

• Active Transport

What would happen if an animal cell is placed in saltwater?

• nothing will happen the cell will be fine

• The cell will fill with water and expand causing it to burst

• The cell will lose water and shrink causing it to shrivel and die

Tags

NGSS.MS-LS1-5

Diffusion will continue to occur until ______ is reached.

• Equality

• Equal gradient

• Equilibrium

• Equity

Why does your body sweat when it gets hot and shivers when you get to cold?

• Maintain Life

• Maintain Diffusion

• Maintain Home

• Maintain Homeostasis

Why is it bad to put salt on a snail?

• Death by osmosis, the water quickly leaves the cells of the snail

• Death by osmosis, the water enters the cells of the snail

• Death by salt, the salt enters the cells of the snail

• Death by salt, the salt leaves the cells of the snail

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which direction would the water flow?

You place your hand in distilled (no solutes, lots of water) water for 12 hours!

• Water would flow into your fingers causing them to swell

• Water would flow out of your fingers causing them to shrink

• Water would flow in and out of your fingers causing no change

Pick all that apply: Passive Transport

• Osmosis

• Simple Diffusion

• Doesn't require Energy

• Molecules move from low concentration to high concentration

Why does Active Transport require Energy?

• because molecules are going from high concentration to low concentration

• because molecules are going from low concentration to high concentration

• because the cell wants to be a equilibrium

• because the cell needs to get water inside