Save
Upgrade to remove ads
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
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.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
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

Topic 2.4

Membranes

TermDefinition
Hydrophobic water fearing (non-polar)
Hydrophilic water loving (polar)
Phospholipid molecule that contains two fatty acids and a phosphate group attached to a glycerol molecule. The fatty acid end is hydrophobic (non-polar) while the phosphate end is hydrophilic (polar)
Simple Diffusion Particles of a certain type move from a region of high concentration to a region of low concentration. This process is a passive transport and does NOT require energy.
Osmosis Water moves from an area of high water concentration to an area of low water concentration. Water moves through small membrane proteins called aquaporins. This process requires NO energy.
Passive Transport This process does NOT require energy. Substances move from an area of high concentration to an area of low concentration (it moves with the concentration gradient). This includes simple and facilitated diffusion and osmosis.
Active Transport Requires energy (ATP) to move substances against a concentration gradient (from an area of low concentration to an area of high concentration)
Facilitated Diffusion This process does NOT require energy. Substances move through a membrane protein with the concentration gradient (from an area of high concentration to an area of low concentration)
Endocytosis Process that allows larger macromolecules to enter the cell (depends on the fluidity of the plasma membrane)
Exocytosis Process that allows larger macromolecules to leave the cell (depends on the fluidity of the plasma membrane)
Created by: kelly.norris
Popular Biology sets

 

 



Voices

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:
Retries:
restart all cards