Card Set Information

2013-10-01 18:06:12

Show Answers:

  1. element
    pure substance
  2. Essential element
    Micronutrients are nutrients needed throughout life in small quantities
  3. Trace Element
    a chemical element required only in minute amounts by living organisms for normal growth.
  4. Atom
    the basic unit of a chemical element.
  5. Atomic Structure
    • The atom is a basic unit of matter that consists of a dense, central
    • nucleus surrounded by negatively charged electrons
  6. Nucleus
    the central part of any object or living thing
  7. proton
    positively charged
  8. Atomic number
    the number of protons in the nucleus of an atom
  9. Nuetron
    no electric charge
  10. Atomic Mass
    the number of protons and nuetrons in and atom
  11. Electron
    Negative charge
  12. Electron energy level
    amount of electrons and protons are level
  13. Isotopes
    each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons
  14. half life
    The radioactivity breaking down the object into half its original form
  15. Universal Solvent
  16. Polar molecule
    a molecule with negatively charged ends
  17. Hydrogen Bond
    weak bond between molecules a negative to a positive atom
  18. Metabolism
    the chemical process to maintain life (homeostasis)
  19. Reactants
    a substance that takes part and changes in a reaction
  20. products
    manufactured by an enzyme
  21. Balanced Equation
  22. compound
    a thing that is composed of two or more separate elements
  23. Covalent Bond
    a chemical bond that involves sharing a pair of electrons between atoms in a molecule
  24. Molecule
    atoms bonded together
  25. Ion
    an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
  26. catioin
    positively charged ion
  27. Anion
    a negatively charged ion
  28. Ionic Bond
    A bond wiht the loss of one proton or nuetron
  29. mixture
    a mix of elememets not changing into a new thing
  30. solution
    a mixture where they create something new
  31. solvent
    a acid that can dissolve something
  32. solute
    minor component in a solution
  33. carbon
    a basic element that can be changed easily
  34. carbon 14 dating
    age of materials
  35. Isomers
    • each of two or more compounds with the same formula but a
    • different arrangement of atoms in the molecule and different properties.
  36. polymer
    a substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded togethe
  37. Potential Energy
    energy about to accour
  38. carbohydrates
    basic energy made up of sugar and junky food
  39. monosaccaride
    any class of sugar
  40. disaccharide
    any of a class of sugars whose molecules contain two monosaccharide residues.
  41. condensation reaction
    the conversion of a vapor or gas to a liquid.
  42. Dehydration synthesis
    • In chemistry and the biological sciences, a dehydration reaction is
    • usually defined as a chemical reaction that involves the loss of water
    • from the reacting molecule. Dehydration reactions are a subset of
    • elimination reactions
  43. polysacchyde
    a carbohydrate
  44. starch
    plant tissue
  45. cellulose
    plant cell wall
  46. glycogen
    a substance deposited in bodily tissues as a store of carbohydrates
  47. Lipid
    any of a class of organic compounds that are fatty acids
  48. Fatty Acid
  49. glycerol
    a colorless, sweet, viscous liquid formed as a byproduct in soap manufacture
  50. protein
    the last form of enegy burnt
  51. Amino Acid
    a simple organic compound containing both a carboxyl (-COOH) and an amino (-NH2) group.
  52. Activation energy
    the minimum quantity of energy that the reacting species must possess in order to undergo a specified reaction.
  53. Peptide bond
    he primary linkage of all protein structures
  54. Enzyme
    a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction.
  55. Nucleic acid
    a complex organic substance present in living cell
  56. Nucleotide
    • a compound consisting of a nucleoside linked to a phosphate group.
    • Nucleotides form the basic structural unit of nucleic acids such as
    • DNA.
  57. Dna
    deoxyribonucleic acid, a self-replicating material present in nearly all living organisms
  58. RNA
    • ribonucleic acid, a nucleic acid present in all living cells. Its
    • principal role is to act as a messenger carrying instructions from DNA
    • for controlling the synthesis of proteins
  59. Acid
    molecule or other entity that can donate a proton or accept an electron pair in reactions
  60. base
    not an acid
  61. Buffer
    A system that regulates
  62. PH
  63. hydrolisis
    the chemical breakdown of a compound due to reaction with water.