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

Biology Unit 2

Mixture 2 or more things that are together but not chemically combined
Two special kinds of mixtures Suspension & solution
Suspension Mixture of water and non-dissolved materials that do not settle out (blood)
Solution Mixture where two materials are dissolved and uniformly mixed
Solute Dissolved material
Solvent Material that does dissolving
Acid Something that produced hydrogen ions
Base Something that produces hydroxide ions
Neutralization reaction When an acid and base are mixed together
Buffer Weak acid or base that can react with strong acids or bases to prevent a sudden change in pH
pH scale is a Log scale ( each step represents 10 )
Acidic pH Less than 7
Basic pH Higher than 7
Metabolism Chemical reaction that accurate in an organism. Chemical reactions involve changes in chemical bonds that join atoms in compounds
Exothermic Chemical reactions that release energy
Endothermic Chemical reactions that absorb energy
Enzymes Organic molecules (protein) that speeds up rate of reaction without being changed by it
Substrate Molecule being affected by the enzyme
Active site Where the substrate binds to the enzyme
Polar molecule
Enzyme inhibitors Molecules that act as an enzyme imposter, and plugs up the active site
Cohesion Strong attraction of molecules of the same substance
Adhesion Attraction of molecules of different substance
Created by: 21stewart.sam
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