Question

learning: chapter 03: sections 7-11 question which of the following substances help promote or stimulate cell division? select all that apply epidermal growth factor m-phase promoting factor chalones growth hormone

Explanation:

1. Epidermal growth factor: It is a signaling molecule that stimulates cell growth and division, especially in epithelial cells.
2. M - phase promoting factor (MPF): It plays a crucial role in promoting the transition from G₂ phase to M phase in the cell cycle, thus stimulating cell division.
3. Chalones: These are substances that inhibit cell division (negative regulators), so they do not promote cell division.
4. Growth hormone: It stimulates growth and cell reproduction in various tissues of the body, promoting cell division.

Answer:

A. Epidermal growth factor
B. M - phase promoting factor
D. Growth hormone