Best Answer: Discrete, in this sense, means the opposite of continuous. An example of a continious variable would be the speed of a car. It can be anywhere ...
Most cells are small for two main reasons: a). The cellâs nucleus can only control a certain volume of active cytoplasm. b). Cells are limited in size by their surface area to volume ratio. A group of small cells has a. relatively larger surface area than a single large cell of the same volume. This is important. because the nutrients, oxygen, and other materials a cell requires must enter through it surface. As a. cell grows larger at some point its surface area becomes too small to allow these materials to enter. the cell quickly enough to meet the cell's need.
Introduction: Cells are limited in how large they can be. This is because the surface area and volume ratio does not stay the same as their size increases. Because of this, it is harder for a large cell to pass materials in and out of the membrane, and to move materials through the cell. In this lab, you will determine the size of plant and animal cells. Your teacher will supply a millimeter ruler and a variety of plant and animal cells.