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14 Cards in this Set

  • Front
  • Back
What are the smalles units that carry out the activities of life in organisms
Who put two magnifying glasses together in a tube to develop the first crude compound microscope
Zacharia Janssen
Made a simplet microscope with a tiny glass bead for a lens
Anton Leeuwenhoek
lets light pas throu an object and then through tow or more lenses
compound light microscope
uses a magnetic feild to bend beams of electrons
electron micrscope
used to study the inside parts of cells
transmission electron microscope
used to the surface of whole objects
scanning electron microscope
made a very thin slice of cork and looked at it under his microscope
used a microscope to study plant parts
concluded that all animals were made up of cells
hypothezisied that new cells don't form on thier own
Cell theory
all organism are made up of one or more cells

Calles are the basic structure of organisims

all celll come from cells that already exist
is a structue that forms the outer boundary of the cell and allows only centeain materials to move into and out of the cell
cell membrane
each tissue cell
carries on the functions needed to keep it alive