Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Your email address is only used to allow you to reset your password. See 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

Stack #2871210

What is selectively permeable? Certain molecules can pass through, but not all.
What are pores? Small holes that allow very small molecules to move in and out freely.
What are the two main types of transport? Active and passive transport
What is passive transport? Molecules move from high to low, without ATP energy
What is active transport? Molecules move from low to high, with ATP energy
What is diffusion? The movement of molecules from areas of high concentration to areas of lower concentration due to random movement.
What is a Concentration gradient? The term used to describe the difference between higher and lower concentration.
What is osmosis? the movement of water across a membrane due to diffusion.
What does equilibrium mean? The point at which the molecules are evenly dispersed
What is Hypertonic? having a higher osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid.
What is Hypotonic? having a lower osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid.
What is Isotonic? denoting or relating to a solution having the same osmotic pressure as some other solution, especially one in a cell or a body fluid.
What is Anaerobic Respiration? Respiration without oxygen, produces less ATP
What is Aerobic Respiration? Respiration with oxygen, produces more ATP
What is ATP energy? able to store and transport chemical energy within cells.
Created by: Maddie Bane
Popular Biology sets




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