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Biochemistry Flashcards

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8155242180atomsmallest particle of an element/ basic unit of matter0
8155246066compoundA substance made up of atoms of two or more different elements joined by chemical bonds1
8155252384van der waals forcesthe attraction of intermolecular forces between molecules. There are two kinds of Van der Waals forces: weak London Dispersion Forces and stronger dipole-dipole forces.2
8155252385mixtureA combination of two or more substances that are not chemically combined3
8155254873pH scalemeasures how acidic or basic a substance is4
8155254874inorganicdoes not contain carbon and not formed from living things or the remains of living things5
8155259057monosaccharideA single sugar molecule such as glucose or fructose, the simplest type of sugar.6
8155259058starchpolysaccharide in plant cells that consists entirely of glucose monomers7
8155262919unsaturated fatA lipid made from fatty acids that have at least one double bond between carbon atoms8
8155265824enzymeA type of protein that speeds up a chemical reaction in a living thing9
8155265825chemical reactionthe process by which one or more substances change to produce one or more different substances10
8155272404substrateA specific reactant acted upon by an enzyme11
8155272495nucleusA part of the cell containing DNA and RNA and responsible for growth and reproduction12
8155277251ionic bondFormed when one or more electrons are transferred from one atom to another13
8155277252ionA charged atom, an atom that has a positive or negative charge14
8155283453solutiona liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent)15
8155283454acidcompound that forms hydrogen ions (H+) in solution; a solution with a pH of less than 716
8155285965monomerA simple compound whose molecules can join together to form polymers17
8155285966disaccharideA double sugar, consisting of two monosaccharides joined by dehydration synthesis.18
8155292815glycogenThe form in which the liver and muscles store glucose/ Extremely branched polymer of glucose.19
8155297062saturated fatA lipid made from fatty acids that have no double bonds between carbon atoms20
8155297063amino acidsthe building blocks of proteins21
8155301079reactantA chemical substance that is present at the start of a chemical reaction22
8155301080electronnegatively charged particle23
8155304700hydrogen bondweak attraction between a hydrogen atom and another atom24
8155304701soluteA substance that is dissolved in a solution.25
8155304702baseA substance that decreases the hydrogen ion concentration in a solution.26
8155307129polymerA long molecule consisting of many similar or identical monomers linked together.27
8155310002polysaccharideCarbohydrates that are made up of more than two monosaccharides28
8155310003fructosefruit sugar/ monosaccharide29
8155313519fatty acidan organic acid that is contained in lipids, such as fats or oils/ Building Blocks of Lipids30
8155313520active sitesthe site on an enzyme that attaches to a substrate31
8155316515productA substance produced in a chemical reaction32
8155316516elementany substance that cannot be broken down into simpler substances33
8155320055covalent bondA chemical bond that involves sharing a pair of electrons between atoms in a molecule34
8155320056cohesionWater molecules sticking to each other/ the force that holds molecules of a single material together35
8155322984solventA liquid substance capable of dissolving other substances36
8155322985bufferA solution that minimizes changes in pH when extraneous acids or bases are added to the solution.37
8155323140carbohydratecompound made up of carbon, hydrogen, and oxygen atoms; major source of energy for the human body38
8155326641glucoseA simple sugar that is an important source of energy.39
8155326642sucroseglucose + fructose40
8155334118triglyceridesorganic compound, a true fat, that is made of one glycerol and three fatty acids41
8155334119denaturationloss of normal shape of a protein due to heat or other factor42
8155339410activation energythe minimum amount of energy required to start a chemical reaction43

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