Control of Cell Division page

1. Cell division capacities vary greatly among cell types.

2. Chromosome tips that shorten with each mitosis provide a mitotic clock, usually limiting the number of divisions to 50.

3. Cell division is limited, and controlled by both internal and external factors.

4. As a cell grows, its surface area increases to a lesser degree than its volume, and eventually the area becomes inadequate for the requirements of the living material within the cell. When a cell divides the daughter cells have more favorable surface area-volume relationships.

5. Cancer is the consequence of a loss of cell cycle control.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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