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1

Although commonly used in the classroom, the light microscope is lacking in its ability to show details. In other words, it is limited in its .
2

The upper surface of an epithelial cell is called its surface.
3

One of the limiting factors to the size of a cell is the time required for diffusion. The time for diffusion is proportional to the of the distance.
4

The current model of the plasma (cell) membrane is called the .
5

proteins bind to a substance on one side of the membrane and release it on the other side.
6

The sugar coating found on the outside of cells is called the .
7

Extensions of the plasma membrane called primarily serve to increase the surface area of the plasma membrane.
8

Chromosomes are composed of .
9

A network of membranous channels studded with ribosomes is called the .







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