Textbook Question
Carrageenan is found in the cell walls of which group of algae?
a. Red algae
b. Green algae
c. Dinoflagellates
d. Yellow-green algae
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8. Eukaryotic Cell Structures & Functions
Introduction to Eukaryotic Organelles
Multiple Choice
Which precursor cell in the hematopoietic pathway is shared by platelets and other formed elements of blood?
A
Megakaryocyte
B
Hematopoietic stem cell
C
Erythroblast
D
Myeloblast
Verified step by step guidance1
Understand the hematopoietic pathway, which is the process by which all blood cells are formed from a common origin.
Identify that all formed elements of blood (red blood cells, white blood cells, and platelets) originate from a single type of precursor cell.
Recognize that the Hematopoietic Stem Cell (HSC) is the multipotent precursor cell capable of differentiating into all blood cell lineages, including megakaryocytes (which produce platelets), erythroblasts (which develop into red blood cells), and myeloblasts (which develop into certain white blood cells).
Note that more differentiated precursor cells like megakaryocytes, erythroblasts, and myeloblasts are lineage-committed and do not give rise to other blood cell types outside their specific lineage.
Conclude that the shared precursor cell for platelets and other formed elements of blood is the Hematopoietic Stem Cell.
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