Homeostasis and Cell Transport

Active transport requires

• osmosis

• energy

• a hypotonic solution

• a concentration gradient

what happens to the rate of diffusion as the temperature increases?

• the rate of diffusion increases

• the rate of diffusion decreases

• the rate of diffusion stays the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which is an example of a hypertonic solution that a human cell could be placed into?

• Saltwater

• a solution equal to the concentrations of the cell

• pure water (no solutes)

Tags

NGSS.MS-LS1-5

Movement of particles or molecules from an area of high concentration to an area of low concentration is called

• Photosynthesis

• Concentration gradient

• Diffusion

• Active Transport

Tags

NGSS.MS-PS1-4

Why would a plant cell become wilted in a concentrated sugar solution?

• the cell would gain water by the process of osmosis

• the cell would lose water by the process of osmosis

• the cell would lose water because of active transport

• the cell would gain water because of active transport

Tags

NGSS.MS-LS1-2

What is being demonstrated here?

• Simple diffusion

• Active Transport

• Osmosis

• Facilitated Diffusion

When molecules spread out to fill in the whole space in the container, what have they come to?

• concentration gradient

• passive

• active

• equilibrium

What type of transport is displayed here?

• Active Transport

• Facilitated Diffusion

• Simple Diffusion

Tags

NGSS.MS-LS1-2

If you have a two chambers that are connected by a tube where gases can travel freely through. To start, Chamber A has 40% oxygen and Chamber B has 20% oxygen in it. What will happen overtime?

• All the oxygen will travel to Chamber A

• All the oxygen will travel to Chamber B

• the oxygen from Chamber A will fill in some of the space in Chamber B until the percentages on either side come to equilibrium

• the oxygen from Chamber B will fill in some of the space in Chamber A until the percentages on either side come to equilibrium

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

• Side A

• Side B