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Bio12-Un1-Ch2
Cell Compounds - Water, Acid, Bases, Buffers
| Question | Answer |
|---|---|
| acids | 1- Any of a class of substances whose aqueous solutions have the ability to react with bases and certain metals to form salts. 2- A substance that can accept a pair of electrons to form a covalent bond |
| bases | molecules that either release hydroxide ions (OH-) or take up hydrogen ions (H+); bases have a pH greater than 7 |
| hemoglobin | the oxygen-carrying pigment of red blood cells that gives them their red color and serves to convey oxygen to the tissues |
| hydrogen bonding | weak bond that arises between a slightly positive hydrogen atom of one molecule and a slightly negative atom of another molecule or between parts of the same molecule |
| hydrophilic | water-loving molecules that are polar in nature |
| hydrophobic | water-phobic molecules that are non-polar |
| lubricant | a substance capable of reducing friction by making surfaces smooth or slippery |
| pH | relative strength of an acid |
| polarity | One of the opposite or contrasted parts or directions in which a polar force is manifested |
| solvent | liquid component of a solution |
| temperature regulaor | (blank) |
| buffer | a compound or combination of compounds (often a weak acid or base and a related salt) that keeps the pH of a solution within its normal limits |
| covalent (covalence) | the number of electron pairs that an atom can share with other atoms. |
Created by:
bioman
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