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建立人际资源圈Cell_Notes
2013-11-13 来源: 类别: 更多范文
Cell Notes
Section 2-1 Review
1. What observations were used to develop the cell theory'
German botanist, Schleiden cells compose not only the stems and roots but every part of a plant
German zoologist, Schwann - made same claim about animals
German physician, Virchow observed that cells come only from other cells
2. What function do organelles serve'
Eukaryotic cells possess organelles
Their small, specific membrane-bound internal compartments, that carry out specific functions in the cell.
3. Explain why cells must be small.
2 limits that affect how efficiently cells work and that govern cell size.
One is related to the exchange between the inside and the outside of the cell.
- All info and materials entering or leaving the cell must pass through
doors in the cell membrane. The efficiency of this exchange depends on the ratio of
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