Notes on Organelles - Organelles-Golgi apparatus provides a...

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Organelles -Golgi apparatus – provides a “packaging” service to the cell by sorting material for future internal use or for export from the cell. -Endoplasmic reticulum – the network of transport channels within the cell that acts as “highways” for the movement of chemicals. -The characteristics of life result from a hierarchy of structure and function tha begins with the organization of atoms, molecules, and macromolecules. -Further organization that results in organelles is the next step. -Cells are the smallest and most numerous structural units that possess and exhibit the basic characteristic of living matter. -A membrane surrounds each cell and is characterized by a single nucleus surrounded by cytoplasm that includes the numerous organelles required for the
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Unformatted text preview: normal process of living. -Although all cells have certain features in common, they specialize or differentiate to perform unique functions. -The next higher level or organization beyond the cell is the tissue level. -Tissues represent another step in the progressive organization of living matter. A tissue is a group of great many similar cells that all developed together from the same part of the embryo and all perform a certain function. -There are four major or principle tissue types, which are epithelial, connective, muscle, and nervous. -Organ units are more complex than tissues. An organ is defined as a structure made up of several different kinds of tissues arranged as that, together, they can perform a special function....
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