Biology

  • Four levels of cells - First Semester
    • A-cellular level and pre=cellular level
    • The atom
    • The molecule, a grouping of atoms
    • Sub-cellular level
    • Organelle a group of biomolecumes, and biochemical reactions and interactions
    • Cellular level
    • The cell, the basic unit of all life, a grouping of organelle
    • Super-cellular level
    • The tissue, fuctioning group of cells
  • Inorganic Chemistry
    • Atoms
    • Smallest unit of atoms
    • Nucleus:
    • Central part of an atom
    • Nearly all weight is in the nucleus, protons and neutrons
      • Protons
      • Positively charged particle (+)
      • 1 amu
      • Change this number and it is a different element
      • Neutron
      • Uncharged particle (0)
      • 1 amu
      • change this number - different mass- isotope of the same element
    • Negatively charged particle (e-)
    • orbit around the nucleus
    • Elements
    • A pure substance made of only 1 type of atom
    • List of Elements = Periodic Table
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