Biochemistry Flashcards
Terms : Hide Images [1]
14380242653 | Ground State | the lowest available energy state of an atom | 0 | |
14380243403 | Excited State | the highest allowable energy state of an atom | 1 | |
14380244323 | Isotopes | Atoms of the same element that have different numbers of neutrons | 2 | |
14380245305 | Half-life | The time required for one half of the atoms of a radioisotope to emit radiation an decay products | 3 | |
14380245306 | Tracer | A molecule with a detectable component | 4 | |
14380247602 | Ionic Bond | Formed when one or more electrons are transferred from one atom to another | 5 | |
14380248534 | Anion | A negatively charged ion | 6 | |
14380248535 | Cation | A positively charged ion | 7 | |
14380249744 | Covalent Bond | A chemical bond that involves sharing a pair of electrons between atoms in a molecule | 8 | |
14380250848 | nonpolar covalent bond | a covalent bond in which the electrons are shared equally by the two atoms | 9 | |
14380250849 | Polar Covalent Bond | A covalent bond in which electrons are not shared equally | 10 | |
14380252814 | polar-polar attraction | when 2 or more atoms form a bond resulting the entire molecule is wither polar (unbalanced) or nonpolar (balanced). stronger attractions b/w polar than nonpolar bc negative end of one polar molecule attracts the positive end of another | 11 | |
14380252815 | Hydrogen bonding | Keeps 2 strands of DNA bonded together Causes water molecules to stick | 12 | |
14380257005 | Nonpolar Molecules | Weakest attraction between non polar molecules | 13 | |
14380258538 | Hydrophobic | fear of water | 14 | |
14380260693 | Hydrophilic | water loving | 15 | |
14380260694 | Water | High specific heat High heat of vaporization High adhesion properties Universal solvent Strong cohesion tension Ice float | 16 | |
14380263675 | pH | a measure of how acidic or basic a solution is | 17 | |
14380264419 | Buffers | weak acids or bases that can react with strong acids or bases to prevent sharp, sudden changes in pH | 18 | |
14380264420 | Carbs | main source of energy | 19 | |
14380265742 | Monosaccharides | glucose, fructose, galactose | 20 | |
14380267249 | Disaccharide | A double sugar, consisting of two monosaccharides joined by dehydration synthesis. Ex. maltose, lactose, sucrose | 21 | |
14380270862 | Hydrolysis | Breaking down complex molecules by the chemical addition of water | 22 | |
14380270863 | Polysaccharides | Carbohydrates that are made up of more than two monosaccharides | 23 | |
14380271772 | Cellulose | A substance (made of sugars) that is common in the cell walls of many organisms | 24 | |
14380272484 | Starch | A storage polysaccharide in plants consisting entirely of glucose. | 25 | |
14380272485 | Chitin | A chemical that provides both toughness and flexibility | 26 | |
14380273234 | Glycogen | An extensively branched glucose storage polysaccharide found in the liver and muscle of animals; the animal equivalent of starch. | 27 | |
14380273235 | Lipids | Energy-rich organic compounds, such as fats, oils, and waxes, that are made of carbon, hydrogen, and oxygen. | 28 | |
14380274529 | Saturated Fats | fats that are solid at room temperature | 29 | |
14380274530 | unsaturated fats | liquid at room temperature | 30 | |
14380275750 | Proteins | Nutrients the body uses to build and maintain its cells and tissues Consist of carboxyl group, amine group, and variable R all attached to central carbon atom | 31 | |
14380276449 | Amino Acids | building blocks of proteins | 32 | |
14380276450 | Peptide bonds | Bonds between amino acids | 33 | |
14380283171 | primary structure | sequence of amino acids | 34 | |
14380283172 | secondary structure | Either an alpha helix or beta pleated sheet. | 35 | |
14380285067 | tertiary structure | The third level of protein structure; the overall, three-dimensional shape of a polypeptide due to interactions of the R groups of the amino acids making up the chain. | 36 | |
14380285068 | quadernary structure | consists of more than a one polypeptide chain (hemoglobin) | 37 | |
14380289014 | Enzymes | Catalysts for chemical reactions in living things | 38 | |
14380291723 | Cofactors | nonprotein enzyme helpers | 39 | |
14380291724 | Coenzymes | organic cofactors | 40 | |
14380294090 | Prions | proteins that cause disease | 41 | |
14380295156 | Nucleic Acids | DNA and RNA Consists of a phosphate, 5 carbon sugar (either deoxyribose or ribose) and nitrogenous base | 42 | |
14380301083 | DNA | A complex molecule containing the genetic information that makes up the chromosomes. Adenine, cytosine, guanine, and thymine | 43 | |
14380302513 | RNA | Adenine, cytosine, guanine, and uracil | 44 | |
14380304374 | Purines | Adenine and Guanine | 45 | |
14380305335 | Pyrimidines | Cytosine and Thymine | 46 | |
14385440493 | glucose + glucose —> _____ by _____. | maltose + water ... dehydration synthesis | 47 | |
14385440494 | Glucose + Galactose = ____ + Water | lactose | 48 | |
14385440918 | glucose + fructose forms | sucrose | 49 |