Why is mitosis important to organisms? Check all that apply.
What would happen to an organism if mitosis did not occur? Check all that apply.
Explain the process of tissue cultures using healthy cells.
A tissue culture is made by taking healthy cells from a living organism and placing them in a nutrient medium. The cells divide by mitosis and grow into one layer. Once the cells touch, they stop dividing until space becomes available, such as when a cell dies. Healthy cells usually undergo about 20 to 50 mitotic divisions in a tissue culture.
What did you include in your answer?
Explain the process of tissue cultures for cancer cells.
Cancer cells are taken from a living organism and grown in a culture. They grow at an uncontrolled rate and do not stop dividing when they touch other cells. As a result, they form multiple layers instead of a single layer. Their growth differs from normal cells because they can undergo an unlimited number of mitotic divisions.
What did you include in your response?
Describe the benefits to using tissue cultures to study medications used for treating cancer cells.
Tissue cultures allow scientists to test medications on cancer cells outside the patient, see which treatments slow their growth, and avoid exposing patients to unnecessary medications.
What did you include in your response?
Did you find these answers helpful?