Levels of Organization

Levels of Organization - Levels of Organization...

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Levels of Organization Atom molecule compounds organelles cell tissue organ organ system organism Atom – basic unit of matter H, N, O, C Molecule – atoms joined together H2O, CO2, O3 Compounds – “macromolecules”; inorganic salts and organic molecules NaCl, CaCO3, proteins, carbohydrates, lipids, nucleic acids Organelles – accomplish jobs within the cell Mitochondria, Golgi Apparatus Cell – basic unit of life Tissue – aggregation of similar cells working toward a common function Epithelial–covers; connective–binds, nervous–communication, muscular-locomotion Organ – two or more different kinds of tissues performing a common function Stomach, bladder, liver Organ system – different organs working to common goal 1. Digestive (gastrointestinal) 2. Nervous (brain, spinal cord, nerves) 3. Respitory (lungs, larynx, nose…) 4. Lymphatic (spleen, liver, lymph nodes) 5. Reproductive (ovary, cervix, fallopian tube) 6. Circulatory (cardiovascular)
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This note was uploaded on 10/25/2010 for the course BISC 212Lx taught by Professor Moyer during the Fall '07 term at USC.

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Levels of Organization - Levels of Organization...

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