Multiple Choice
In adult hematopoiesis, red blood cells (erythrocytes) are ultimately formed from which cell type?
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19. Stem Cells
Stem Cells
Multiple Choice
In the context of stem cells, which type of cell is defined as the cell from which all other differentiated cell types in an organism are ultimately derived?
A
Stem cell
B
Differentiated (specialized) cell
C
Somatic cell
D
Apoptotic cell
Verified step by step guidance1
Understand the definition of each cell type mentioned: A stem cell is an undifferentiated cell capable of giving rise to various specialized cell types; a differentiated (specialized) cell has already developed specific functions; a somatic cell is any body cell except germ cells; an apoptotic cell is a cell undergoing programmed cell death.
Recognize that the question asks for the cell type from which all other differentiated cell types in an organism are ultimately derived, meaning the original source of diverse cell types.
Recall that stem cells have the unique ability to self-renew and differentiate into multiple specialized cell types, making them the origin of all differentiated cells in an organism.
Differentiate stem cells from somatic and differentiated cells, noting that somatic cells are already specialized and apoptotic cells are dying, so neither can give rise to other cell types.
Conclude that the correct answer is 'Stem cell' because it is the fundamental cell type that can generate all other differentiated cells in an organism.
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