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Notice that the larger cube has more surface area and more volume but less surface area for each cubic centimeter of volume. For any given geometric object (cubes, spheres, etc.), smaller objects have a greater surface to volume ratio (surface:volume) than larger objects of the same shape. Every cell is surrounded by a plasma membrane (discussed below and in the next chapter). Most cells are very small and therefore have a high ratio of...
45 p pdu 20/10/2012 130 1
Từ khóa: Cells, Prokaryotic Cells, Eukaryotic cells, Cell Wall, Photosynthesis, Cell Theory
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