Multiple Choice
Which of the following proteins is a transcription factor that activates genes to promote entrance into S phase?
16. Cell Division
Control of Cell Size
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Which of the following factors is not responsible for controlling cell division, size, or survival?
A
Growth factors
B
Survival factors
C
Integrins
D
Mitogens
Verified step by step guidance1
Understand the role of each factor listed in the problem: Growth factors, Survival factors, Integrins, and Mitogens.
Growth factors are proteins that stimulate cell growth and division by binding to specific receptors on the cell surface, initiating a cascade of cellular processes.
Survival factors are molecules that prevent apoptosis (programmed cell death) and ensure cell survival by activating signaling pathways that inhibit apoptotic processes.
Mitogens are substances that trigger a cell to commence cell division, leading to mitosis, by activating signaling pathways that promote the cell cycle.
Integrins are transmembrane receptors that facilitate cell-extracellular matrix (ECM) adhesion. They are primarily involved in cell adhesion and signal transduction, rather than directly controlling cell division, size, or survival.
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