Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


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
Know
remaining cards
Save
0:01
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:
Retries:
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

J.Sills Osmosis

QuestionAnswer
diffusion movement of particles from high to low concentration
osmosis movement of water from high to low concentration across a semi-permeable membrane
selectively permeable some materials can enter and exit, but not all
concentration gradient "natural flow from high to low" concentration
isotonic water flows in and out of cell at same rate; balanced; state of homeostasis
hypotonic (direction of water flow) water enters cell causing it to swell
hypertonic (direction of water flow) water exits cell the cell causing it to shrink
passive transport transport in cells that does not need energy because movement is with the gradient; (like riding the "down" escalator)
active transport transport that needs energy because movement is against the gradient; (like going "up" the "down" escalator)
facilitated diffusion substances diffuse across the cell membrane with help from transport proteins
transport protein proteins that transport substances across the cell membrane
endocytosis cell "engulfs" particles that are too big to cross membrane; materials in
exocytosis cell "expels" substances that are too big to cross membrane; materials exit
cell membrane semi-permeable barrier between cells internal and external environment
hypertonic (concentration of water) higher concentration of water inside of the cell
hypotonic (concentration of water) higher concentration of water outside of the cell
surface tension stronger attractive force of water molecules on the surface of water
capillary action upward movement of water through narrow tubes in plants.
solvent a substance that dissolves another
solute the substance being dissolved
solution the solute and solvent mixed together
hydrophobic will not mix with water; "water fearing"
hydrophilic mixes with water; "water loving"
homeostasis state of maintaining constant, stable, balanced conditions for survival; also called "dynamic equilibrium"
polar/polarity having unequal/uneven distribution of charges (+ and -)
Cohesion water molecules sticking to other water molecules
adhesion water molecules sticking to other things
pH measure of how acidic or basic a substance is
acid pH below 7
base pH above 7
Neutral pH of 7
atom basic building blocks of all matter
element basic substance that cannot be broken down any further.
Reactant what you start a chemical reaction with; on left side of the arrow
Product what you end end the reaction with; on right side of arrow.
Created by: jsills