세포생물학 5판 솔루션 (저자 Gerald Karp , 5th ed Cell and Molecular biology)

CHAPTER 1
1. The specific answer would depend on the question asked. Advantages of working with a cell culture include the ability to study a single cell type, ease of obtaining large numbers of cells, ability to minimize number of unknown variables by using carefully controlled in vitro conditions. The advantage of using a whole organism is that information obtained is more meaningful in understanding the role of the process in the overall activity of the organism. For example, one might want to study glucose transport across the plasma membrane of cultured liver cells in response to insulin, but the results would not tell you much about the role of this process in maintaining proper blood glucose levels.

2. They greatly increase the surface area/volume ratio of the cell, allowing much greater exchange between the cell and the lumen of the intestine. Would be unable to absorb sufficient nutrients from the lumen to survive.

3. Cancer cells grow in a much less controlled manner