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Danielle Easterday

Chapter 7 Vocab.

TermDefinition
Organization the orderly structure of cells in an organism.
Cell The basic unit of living organisms.
Compound Light Microscope Uses a series of lenses to magnify objects in steps.
Cell Theory Is made up of 3 basic ideas: 1. All organisms are composed of one or more cells. 2.The cell is the basic unit of structure and organization of organisms. 3. All cells come from preexisting cells.
Electron Microscope Developed in the 1940s, it uses a beam of electrons instead of light to magnify structures up to 500,000 times their actual size, allowing scientists to see structures within a cell.
Organelle Is contained in all cells, it is the small and specialized structure.
Prokayote Doesn't have a membrane-bound organelle (Unicellular Bacteria)
Eukaryote Has membrane-bound organelles. (Multicellular organisms.)
Nucleus The central membrane-bound organelle that manages or controls cellular functions.
Ion An atom or group of atoms with a positive or negative electrical charge
Plasma Membrane The flexible boundary between the cell and its environment, to allow a steady supply of these nutrients to come into the cell no matter what the external conditions are
Selective Permeability A process in which a membrane allows some molecules to pass through while keeping others out.
Phospholipid Has a glycerol backbone, two fatty acid chains, and a phosphate group.
Fluid Mosaic Model Is the model of the plasma membrane.
Transport Proteins Move needed substances or waste materials through the plasma membrane.
Created by: soccerdani15
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