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

QuestionAnswer
atom Building block of matter' contains subatomic particles neutrons, protons, and electrons.
compound Pure substance with unique properties; formed when two or more different elements combine.
covalent bond Type of chemical bond formed when ments or sounds to attract a mate.
electron Negatively charged particle that occupies space around an atom's nucleus.
element Pure substance composed of only one type of atom; cannot be broken down into another substance by physical or chemical means.
ion Atom that is negatively or positively charged because its has lost or gained one or more electrons.
ionic band Electrical attraction between two oppositely charged atoms or groups of atoms.
isotope Two or more atoms of the same element having different numbers of neutrons.
molecule Compound whose atoms are held together by covalent bonds.
neutron Particle without a charge in an atom's nucleus.
nucleus Center of an atom; contains neutrons and protons. In eukaryotic cells, the central membrane-bound organelle that manages cellular functions and contains DNA.
proton Positively charged particle in an atom;s nucleus.
van der waals force Attractive force between molecules.
activation energy Minimum amount of energy needed fro reactants of 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.
chemical reaction Energy - requiring process by which atoms or organism towards or away from a particular
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 hydroxide ions (OH-) when dissolved in water; a basic solution has a pH greater than 7.
buffer Mixture than can react with an acid or a bse to maintain the ph within a specific range.
hydrogen band Weak electrostatic bond formed by the attraction of opposite charges between a hydrogen atoms 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 area of substance (heterogenous)
ph Measure of the concentration of hydrogen ions (H+) in a solution.
polar molecule Molecule with oppositely charged regions.
solute The substance that is dissolved in the solvent.
solution Another name for homogeneous mixture.
solvent A substance in which another substance is dissolved.
amino acid Are small compounds that are made of carbon, nitrogen, oxygen, hydrogen, and sometimes sulfur.
carbohydrate Compounds composed of carbon, hydrogen, and oxygen in a ration of one oxygen and two hydrogen atoms for each carbon atom.
liquid Are molecules made mostly of carbon and hydrogen that make up the fats, oils, and waxes.
macromolecule Large molecules that oar formed by joining smaller organic molecules together.
nucleic acid Are complex macromolecules that store and transmit genetic information.
nucleotide A subunit of nucleic and formed from a simple sugar, a phosphate group, and nitrogenous base.
polymer Are molecules made from repeating units of identical or nearly identical compounds called monomers that are linked togerther by a serines of convalent baonds.
protein A compound made of small carbon compound called amino acids.
Created by: luisgomez1
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