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

AP Biology chapter 7

QuestionAnswer
Selective Permeability Allows some substances to cross it more easily than others.
Amphipathic Hydrophobic and hydrophillic regions.
Fluid Mosaic Model The membrane is a fluid structure with various proteins embedded.
Cholesterol Membrane stabilization
Peripheral Proteins Surface of membranes.
Integral Proteins Embedded proteins.
Membrane Carbohydrates Cell to cell recognition.
Membrane Fluidity Caused by phospholipids.
Diffusion Tendency of any molecule to spread out. Always goes with gradient.
Concentration Gradient The region along which the density of a chemical substance decreases.
Passive Transport Diffusion of a substance across a membrane. No energy.
Osmosis The diffusion of water.
Hypertonic High concentration of solutes
Hypotonic Lower concentration of solutes.
Isotonic Equal concentrations of solutes.
Osmoreagulation Control of water balance.
Turgid Very firm
Flaccid Limp, weak.
Plasmolysis Plasma membrane pulls away from the cell wall.
Facilitated Diffusion Passage of molecules and ions with transport proteins across a membrane down the gradient.
Active Transport Movement of a substance against its concentration gradient using energy.
Exocytosis Secretion of macromolecules by the fusion of vesicles with the plasma membrane.
Endocytosis Import of macromolecules by forming new vesicles with the plasma membrane.
Pinocytosis Cellular drinking.
Receptor-mediated Endocytosis Movement of specific molecules into a cell by the budding of membranes vesicles containing proteins.
Ligand Any molecule that binds to a specific receptor site.
Created by: helloxdalena
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