Hematology Quiz 1
Authored by irish ponce
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University
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a critical cofactor for delta-aminolevulinic acid dehydratase during heme synthesis?
Zinc
Iron
Magnesium
Copper
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following signaling pathways is pivotal in thrombopoietin-mediated megakaryocyte differentiation?
JAK-STAT pathway
NF-κB pathway
MAPK pathway
PI3K-AKT pathway
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The transcription factor PU.1 is essential for the lineage commitment of:
Megakaryocytes
Myeloid cells
Erythroid cells
Lymphoid cells
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the bone marrow niche, osteoblasts primarily regulate:
Megakaryopoiesis
Granulopoiesis
HSC quiescence
Erythropoiesis
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During ineffective erythropoiesis in thalassemia, the predominant cause of apoptosis is dysregulation of:
BCL-2 family proteins
Fas/FasL pathway
Caspase-9 activation
p53 upregulation
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following cell surface receptors mediates hepcidin binding, regulating iron export from enterocytes and macrophages?
Transferrin receptor 1
Divalent metal transporter 1 (DMT1)
Ferroportin
HFE protein
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes the erythroid maturation stage where hemoglobin synthesis peaks?
Proerythroblast
Basophilic erythroblast
Polychromatic erythroblast
Orthochromatic erythroblast
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