Some differentiated cells become senescent almost immediately, leaving the cell cycle and undergoing terminal differentiation. Other cells have a high need to proliferate in order to grow and repair the organ or tissue, so they do not enter senescence for a long period of time. Which cell type would be most likely to put off senescence and terminal differentiation so it could continue to replicate in order to grow and repair?(1 point)

Question

Responses

heart cells
heart cells

brain cells
brain cells

skin cells
skin cells

lung cells
lung cells

Answer 1

The cell type most likely to put off senescence and terminal differentiation in order to continue replicating for growth and repair would be skin cells.

Skin cells, particularly epidermal cells, constantly undergo turnover and are required for repair and regeneration of the skin after injury or damage. In contrast, heart cells (cardiomyocytes) and brain cells (neurons) are generally post-mitotic, meaning they do not proliferate as readily, and lung cells (specifically alveolar cells) have a more limited capacity to replicate compared to skin cells. Thus, skin cells are more adaptable for ongoing proliferation and repair processes.