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Chapter 19: Problem 11

Growth factors lead to a. increased cell division. b. the functioning of cyclin proteins. c. progression through the cell cycle. d. All of these are correct.

Short Answer

Expert verified
The correct answer is (d) All of these are correct. Growth factors play a vital role in increased cell division, the functioning of cyclin proteins, and progression through the cell cycle.

Step by step solution

01

Option a: Increased cell division

Growth factors are proteins that stimulate cell proliferation. They bind to specific receptors on the cell surface, transmitting signals that trigger cell division. So, option a is correct.
02

Option b: The functioning of cyclin proteins

Cyclin proteins play a crucial role in controlling cell cycle progression. Growth factors can influence the production and activation of cyclins, which in turn regulate cell cycle events. Therefore, option b is also correct.
03

Option c: Progression through the cell cycle

The cell cycle is a series of events that occur in a cell, leading to its division and duplication. Growth factors are essential for initiating and regulating these events, ensuring proper progression through the cell cycle. Thus, option c is correct as well.
04

Option d: All of these are correct

As we have discussed and identified that growth factors play a vital role in all three processes mentioned in options a, b, and c, it is clear that option d, which states that all the options are correct, is the right answer to this exercise.

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