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Chapter 1- organelle

section 1

QuestionAnswer
What is a cell? basic untis of structure and function in living things.
Did the invention of the microscope made it possible for people to discover and learn about cells. True or False? True
Microscope an instruemnt that makes small objects look larger.
compound microscope a light microscope that has more then one lens.
Robert Hooke one of the first people to observe cells (English scientist)
Antton Van Leeuwenhoek also began to observe tiny objects with microscopes (Dutch) Constructed a simple microscope.
cell Theory widely accepted explanation of the relationship between cells and living things.
The cell theory states: all living things are composed of cells, cells are the basic unit of structure and function in living things, all cells are porduced from other cells.
Light Microscope uses lens to make small objects look larger
magnification ability to make things look larger then they are. the lens or lenses in a light microscope magnify an object by bending the light that passes through them.
convex lens a lens with this curved shape.
resolution ability to clearly distinguish the indivisual parts of an object.
electron microscope use a beam of electrons instead of light to examine a specimen
electrons tiny particles smaller then atoms
Created by: sherylxo
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