Cell Membrane Transport Hypertonic Hypotonic Isotonic

Which image best represents facilitated diffusion?

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• 
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• 

Which is NOT true about this image?

• It illustrates active transport.

• It shows a substance moving against the concentration gradient.

• The movement of the substance shown requires energy.

• It illustrates facilitated diffusion.

Which of the types of transport are passive?

• A only.

• A and B only.

• B and C only.

• C only.

All the gummy bears in our lab got bigger. This is because they were all in _____ solutions.

• hypotonic

• hypertonic

• isotonic

• tonic water

Tags

NGSS.MS-LS2-4

You are alone on an island in the middle of the Atlantic Ocean. You are hot and thirsty, so you want to drink water from the ocean. You think about biology class and you decide:

• to drink the ocean water because the extra salt will quench your thirst.

• not to drink the ocean water because the extra salt will cause you to dehydrate.

• to drink the ocean water because your cells will burn more fat due to the salt intake.

• not to drink the ocean water because the extra salt will cause your cells to burst.

Transport of water molecules across a cell membrane allows cells to maintain stable internal conditions in an ever-changing environment. This stable internal condition is called _____.

• homeostasis

• energy transfer

• osmosis

• carrying capacity

Tags

NGSS.HS-LS1-3

Which of the following is NOT true?

• Animal cells in hypotonic solutions will burst.

• Plant cells in hypotonic solutions will not burst due to the cell wall.

• Water is not flowing when cells are in isotonic solutions.

• Cell membranes pull away from cell walls when plant cells are in hypertonic solutions.

Concentration (amount) of solutes is equal on both sides of the cell membrane; this allows the flow of water through the cell membrane to be equal.

• solvent solution

• isotonic solution

• hypotonic solution

• hypertonic solution

Concentration (amount) of solutes OUTSIDE of the cell membrane is GREATER than inside cell; this promotes a greater flow of water outside the cell thus leading to cell shrinking.

• solvent solution

• isotonic solution

• hypertonic solution

• hypotonic solution

Movement of a solvent (usually water) from a low solute concentration to a high solute concentration in order to equalize the concentration of the two solutions. No energy required.

• diffusion

• osmosis

• active transport

• facilitated diffusion