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BJU-Bio 3rd Ed-03A
BJU-Bio 3rd Ed-Ch03A- TERMS Cell Theory, Function, Anatomy
Question | Answer |
---|---|
Cytology (cyto-, -cyte, or -cytic; Gk. KUTOS, hollow or cell) | the study of cells |
Cell (L. CELLAE, chambers) | the functional and structural unit of life (the most basic unit of life) (++ Robert Hooke, cork; Matthias Schleiden, Theodore Schwann) |
Protoplasm (proto- or prot-; Gk. PROTOS, first) + plasm (PLASSEN, to mold) | All the living substances within a cell. |
Unicellular organism | An organism made of only one cell. |
Multicellular organsim | An organism made of many cells (++ cells cannot survive on their own) |
Colonial organism | An organism made of similar cells living together; each can behave as a unicellular organism. |
Tissue | A group of similar cells doing he same job |
Organ | A group of tissues working together to accomplish the same job |
Organ System | A group of organs working together to accomplish life functions. |
Cell Junction | Connections between cells formed by the interaction of proteins. |
Plasmodesmata | Tiny passageways between the cytoplasm of plant cells. They are lined with the plasma membrane making the connection continuous. |