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

Chapter 6 vocab

TermDefinition
atom building block of matter; contains subatomic particles - neutrons, protons, and electrons
compound a pure substance formed when two or more different elements combinegra
covalent bond type of chemical bond formed when atoms share electrons
electron negatively charged particles that are located outside the nucleus (e-)
element a pure substance that cannot be broken down into other substances by physical or chemical means
ion atom that is negatively or positively charged because it has lost or gained one or more electrons
ionic bond electrical attraction between two oppositely charged atoms or groups of atoms
isotope atoms of the same element that have different numbers of neutrons
molecule compound whose atoms are held together by covalent bonds
neutron particles that have no charge (n0)
nucleus center of an atom; contains neutrons and protons.
proton are positively charged particles (p+)
van der Waals force attractive forces between molecules
activation energy minimum amount of energy needed for reactants to form products in a chemical reaction
active site specific place where a substrate binds on an enzyme
catalyst substance that speeds up a chemical reaction by reducing the activation energy
chemicl reaction energy-requiring process by which atoms or groups of atoms in substances are changed into different substances
enzyme protein that speeds up a biological reaction by lowering the activation energy needed to start the reaction
product substance formed by a chemical reaction; located on the right side of the arrow in a chemical equation
reactant substance that exists before a chemical reaction starts; located on the left side of the arrow in a chemical equation
substrate reactant to which an enzyme binds
acid substance that releases hydrogen ions (H+) when dissolved in water; an acidic solution has a pH less than 7.
base substance that releases that releases hydroxide ions (OH-) when dissolved in water; a basic solution has a pH greater than 7
buffer mixture that can react with an acid or a base to maintain the pH within a specific range.
hydrogen bond weak electrostatic bond formed by the attraction of opposite charges between a hydrogen atom and an oxygen, fluorine, or nitrogen atom
mixture combination of two or more different substances in which each substance keeps its individual characteristics; can have a uniform composition (homogeneous) or have distinct areas of substances (heterogeneous).
pH measure of the concentration of hydrogen ions (H+) in a solution
polar molecule molecule that oppositely charged regions
solute substance dissolved in a solvent
solution homogeneous mixture formed when a substance (the solute) is dissolved in another substance (the solgent)
solvent substance in which another substance is dissolved
amino acid carbon compound joined by peptide bonds; building block of proteins.
carbohydrate organic compound containing carbon, hydrogen, and oxygen in a ratio of one oxygen and two hydrogen atoms for each carbon atom
liqid hydrophobic biological molecule composed mostly of carbon and hydrogen; fat, oils, and waxes are liqids.
macromolecule large molecule formed by joining smaller organic molecules together
nucleic acid complex macromolecule that stores and communicates genetic information
nucleotide a subunit of nucleic acid formed from a simple sugar, a phosphate group, and a nitrogenous base.
polymer large molecule formed from smaller repeating units of identical, or nearly identical, compounds linked by covalent bonds.
protein organic compound made of amino acids joined by peptide bonds; primary building block of organisms.
Created by: zlomax98
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