Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

cell transport

cell transport functions

Plasma Membrane the flexible boundary between the cell and its environment ,to allow a steady supply of nutrients to come into the cell no matter what the external conditions are.
Diffusion Random movement of particles from an area of higher concentration to an area of lower concentration ,eventually resulting in even distribution .
Osmosis The diffusion of water across a selectively permeable membrane.
Isotonic Solution Concentration of dissolved substances in the solution is the same as the concentration or dissolved substances inside the cell.
Hypotonic Solution The concentration of dissolved substances is lower in the solution outside the cell than the concentration inside the cell.
Hypertonic Solution The concentration of dissolved substances outside the cell is higher than the concentration inside the cell.
Passive Transport Movement of particles across cell membranes by diffusion or osmosis ;the cell uses no energy to move particles across the membrane.
Facilitated Diffusion Passive transport of materials across the membrane using transport proteins.
Active Transport Movement of materials through a membrane against a concentration gradient .
Endocytosis A process by which a cell surrounds and takes in material from its environment .
Exocytosis The explosion or secretion of material from a cell.
Created by: Karla Perez



Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards