Unit 1 MLS Review Exam- RBC 1 Questions and
Answers 100% Correct|Latest 2025 Update Complete
In what month of embryonic maturation does BM become the main region of
hematopoiesis? - (answers)5th
What is the most common WBC seen in healthy BM? - (answers)metamyelocytes
What is the RBC maturation series? - (answers)rubriblast-pronormoblast,
prorubricyte- basophilic normoblast, rubricyte- polychromatophilic normoblast,
metarubricyte- orthochromic normoblast, retic, mature cell
What is the last cell in the RBC maturation series capable of mitosis? -
(answers)rubricyte- polychromatophilic normoblast
What is unique about the metarubricyte nucleus? - (answers)pyknotic
What demographic has the highest normal WBC, RBC, hgb, and hct? -
(answers)newborns
What demographic has the lowest normal RBC, hgb, and hct? - (answers)6mo-1yr
What components make up a hgb molecule? - (answers)4 moles of heme + one
mole of globin
, 2
What form of iron is the body able to use? - (answers)ferrous - Fe2+
What factors effect hgb's ability to transport and deliver O2 to tissues? -
(answers)pH, temperature, ionic strength, and DPG
What is the bohr effect? - (answers)shift in saturation curve as pH shifts
What is the function of DPG? - (answers)decreases hgb's affinity for O2
What factors cause a decrease in hgb's affinity for O2? - (answers)decreased pH,
high temps, increased DPG
What factors cause an increase in hgb's affinity for O2? - (answers)increased pH,
low temps, decreased DPG
What are the steps of porphyrin synthesis? - (answers)glycine+succinyl CoA -->
ALA --> PBG --> coproporphyrinogen --> protoporphyrinogen --> porphyrin
What chains are encoded on chromosome 16? - (answers)alpha and zeta
What chains are encoded on chromosome 11? - (answers)beta, gamma, delta,
epsilon