click below
click below
Normal Size Small Size show me how
1-2 Discovering Cell
Question | Answer |
---|---|
cells | the basic units of structure and function in living things |
microscope | -instrament that makes small objects look larger -made it possible for people to discover and learn about cells |
compound microscope | a light microscope that has more than one lens |
Anton van Leeuwenhoek | -discovered animalcules -created simple microscope |
Robert Hooke | -one of the first people to observe cells -"slice of cork expirament" -used compound microscope |
Mattias Schleiden | -concluded that all plants are made of cells |
Theodore Schwann | -discovered all living things are made of cells |
Rudolf Virchow | -proposed that new cells are formed from existing cells |
cell theory | all living things are composed of cells, cells are the basic unit ofstructure and function in livings,all cells are produced from other cells |
magnicfication | the ability to make things look larger than they are |
light microscope | the lens or lenses is a light microscope magnify an object by bending the light that passes through them |
convex lens | a lens with a curved shape where the center is thicker than the edges |
resolution | the ability to clearly distinguish the individual parts of an object |
electron microscope | -uses a beam of electrons instead of light - resolution is much higher than a light microscope |