Terms : Hide Images
| 8081855661 | atom | smallest unit of matter that cannot be broken down by chemical means | 0 | |
| 8081862282 | element | composed of a single type of atom | 1 | |
| 8081867455 | valence electron | electrons in the outer most level or shell | 2 | |
| 8081875296 | molecule | group of atoms held together by covalent bonds | 3 | |
| 8081882123 | Ion | an atom or group of atoms that has an electric charge because it gains or loses electrons | 4 | |
| 8081893917 | polar molecule | molecules that have partial charges on opposite ends | 5 | |
| 8081901984 | cohesion | attraction of particles of the same substance | 6 | |
| 8081910079 | non-polar molecule | 7 | ||
| 8081911805 | adhesion | attraction of particles of different substances | 8 | |
| 8081917186 | solution | a mixture in which ions or molecules of one or more substances | 9 | |
| 8081926255 | acid | compounds that form extra hydronium ions when dissolved in water | 10 | |
| 8081933642 | base | compounds that form extra hydroxide ions when dissolved in water | 11 | |
| 8081940416 | pH | is the meassure of how acidic or basic a solution is | 12 | |
| 8081946288 | buffer | is a substance that reacts to prevent ph changes in a solution | 13 | |
| 8081950875 | carbohydrate | molecules made of sugar (simple monosaccharide/disaccaride) glucose/frucose (polysaccaride complex ex. starch energy-carbs an efficient and easily accessible supply of energy for cells structure-plant cells made up of carb called cellulose |  | 14 |
| 8081953674 | lipid | another class of biomolecules (fat/waxes and steriods) long chains of carbon and hydrogen building blocks fatty acids fats/oils--long term storage of energy insulation--organisms use fat to reduce heat lose sihnaling-steriods hormones can effect many different parts of metabolism |  | 15 |
| 8081959261 | protein | a molecule made up of amino acid-c,h,o held together by peptide bond (polypeptides) strucute--ligaments/hair/nails made of protein protection--antibodies are made of proteins |  | 16 |
| 8081964294 | amino acid | building blocks that line to form protein |  | 17 |
| 8081974540 | reaactant | substance that is changed in a chemical reaction | 18 | |
| 8081978805 | product | a new substance that is formed | 19 | |
| 8081984222 | activation energy | reaction is the minimum kinetic energy colliding with particles need to stat a chemical reaction | 20 | |
| 8081992389 | enzyme | molecule that increases the speed of biochemical reactions | 21 | |
| 8082007971 | active site | region where the reaction takes place | 22 | |
| 8082010223 | substate | shape of the active site determines the reactants | 23 | |
| 8082023116 | exergonic | producing energy | 24 | |
| 8082025118 | endergonic | absorbtion of energy | 25 | |
| 8082074582 | compounds | composed of two are more different types of atoms chemicslly bound to each other | 26 | |
| 8083328118 | mixture | when 2 or more substances are mixed but not chemically combined | 27 | |
| 8083334740 | ionic bonds | ionic bond forms when electrons are transferred from one atom to another atom--- hasa positive or negative charge---occurs due to loss or gain of electrons | 28 | |
| 8083347412 | covelent bonds | a covalent bond is formed when electrons are shared between atoms----atoms held together by covalent bonds are molecules---- electrons in a covalent bonds can be shared equally, forming nonpolar molecules and unequally forming polar molecules | 29 | |
| 8083379697 | Polar covalent bonds | the electrons are unevenly shared creating a molecule with a positive end . and a negative end | 30 | |
| 8083408753 | hydrogen bond | a hydrogen bond is a weak bond which forms between a hydrogen atom on one molecule and a negative region on another moelcule -- form between polar molecules | 31 | |
| 8083421464 | organic compounds | all organic compounds contain carbon almost all organic compounds contain hydrogen and oxygen nitrogen, phosphorous and sulfur are other important components of many organic compunds | 32 | |
| 8083440403 | Carbon | can form 4 bonds simultaneously can bond with 4 atoms at a time forms double and triple bonds forms long chains and branching chains | 33 | |
| 8083455329 | biomolecules | proteins-composed of carbon (c) hydrogen (h) oxygen (0) nitorgren (N) sulfer (s) lipids- c h and o mostly c carbohydrates- c,h,o 1;2:1 ratio nucleic acid c,h,o,n,p | 34 | |
| 8083587368 | nucleic acids | building acids are nucleotides nucleotide made up of phosoahte group, sugar and nitrogenous base hereditary info-dna carries instructions for development rna plays role in protein | 35 | |
| 8083612660 | atp | adenosine triphospate- a molecule used by all living things as an energy source for biological reaction food ingested is converted to atp | 36 | |
| 8083643381 | signaling | steriods are a class of hormones whch are used in many organisms to control developmnent and cellular activity |  | 37 |
| 8083709890 | membranes | phospholipids are the major component of all cell membranes and many organelle membranes consists of 2 fatty acids joined to a phosphate group | 38 | |
| 8083768534 | protein structure | primary-order of amino acids each protein has different sequence secondary- chains will coil and fold on itself tertiary-overall shape of the signal chain quaternary- when more than one chain joins togehter to form a large molecule | 39 | |
| 8083843545 | changing matter | a chemical change occurs when one or more sunstances change their chemical properties a chemical change often involves creating and breaking chemical bonds | 40 | |
| 8083853767 | energy | every change in matter is accompained by a change in energy--energy no destroyed | 41 | |
| 8083871348 | enzymes | protein--speed up chemical reactions by lowering the activation energy for the reaction enzymes are not changed during the reaction enzymes help lower activation energy by bring reactants togehter | 42 | |
| 8083899164 | enzymes work | enzymes bind a substrarte at the active site bonds are then eithet broken or made--products are releaed | 43 | |
| 8083925404 | reaction rates and enzymes | an enzyme must maintin its shape to be able to function properly changes in temp or ph change the shape of an enzyme making it less effective an increase in substrate will speed up reaction | 44 | |
| 8614918400 | characteristics of living things | have one or more cell respond to their enviroment-temp,pysical adaptation/evolution growth homeostatis reprosuction | 45 | |
| 8614935397 | asexually | with out combing genetic material, cloning making double | 46 | |
| 8614942072 | sexually | through combing genetic material 2 sources egg and sperm | 47 | |
| 8614955429 | scientific method | a process used by scientist to investigate various subjects, it involves following a general procedure with several steps. collecting data, experimenting, analyzing data, organzing data, conclusion | 48 |
