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.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

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

BI Lab 5

plasma membrane physical barrier that separates the cell interior from the environment and regulates substances passing into or out of the cell
lipids and fats main components of the plasma membrane and of cell organelle membranes
bilayer lipid molecules form a ________ with protein molecules of various types distributed throughout the lipid bilayer
diffusion the process by which molecules move about by inherent random motion and become evenly mixed or dispersed
equilibrium exists when the molecules become uniformly distributed
concentration gradient exists when molecules are not evenly distributed
temperature, pressure, concentration, and molecule size variables that affect diffusion
selectively permeable some substances pass through more readily than others
impermeable completely prevents the passage of those molecules into or out of the cell
dialysis the diffusion of a dissolved solute through a selectively permeable membrane
osmosis diffusion of water through a selectively permeable membrane
solutes particles in a solution
isotonic (iso=same) two solutions that have the same concentrations of solutes
hypertonic (hyper=higher) solution contains a higher concentration of solutes than another solution
hypotonic (hypo=lower) solution contains a lower concentration of solutes in comparison to another solution
monosaccharide one sugar
polysaccharide large molecule composed of many sugars
vacuole surrounded by the vacuolar membrane
vacuolar membrane is selectively permeable
turgor pressure presses the cytoplasm against the cell wall
turgid cells with turgor pressure
plasmolysis the shrinkage of the cytoplasm away from the cell wall
Created by: pace_sauce