2025/2026) Verified Answers.
Which mature cell has no nucleus, mitochondria or ribosomes?
A. Erythrocyte
B. Leukocyte
C. Platelet
D. Neutrophil - CORRECT ANSWER A. Erythrocyte
A normal adult red blood cell count ranges from
A. 4.2 to 5.8 million/cubic mm
B. 5.5 to 6.5 million/cubic mm
C. 6.5 to 7.5 million/cubic mm
D. 7.5 to 8.5 million/cubic mm - CORRECT ANSWER A. 4.2 to 5.8 million/cubic mm
In the formation of blood cells, the megakaryoblast ultimately develop into
A. Lymphocytes
B. Platelets
C. Monocytes
D. Both A and B - CORRECT ANSWER B. Platelets
All blood cells are derived from
A. Reticulocytes
B. Proerythroblasts
C. Monocytes
D. Hemocytoblasts - CORRECT ANSWER D. Hemocytoblasts
What formed elements assist in coagulation
A. Leukocytes
B. Proerythroblasts
C. Thrombocytes
D. Monocytes - CORRECT ANSWER C. Thrombocytes
Hemocytoblasts give rise to:
A. Erythrocytes
B. Leukocytes
C. Thrombocytes
D. All of the above - CORRECT ANSWER D. All of the above
A hematocrit value of 38 ml/ 100 ml of blood would be: - CORRECT ANSWER In the
low normal range for a woman
, When whole blood is spun down in a centrifuge, the buffy coat can be found: -
CORRECT ANSWER Between the plasma and red blood cells
What part of the hemoglobin molecule combines with carbon dioxide?
A. Globin
B. Heme
C. Iron Atoms
D. Hemoglobin does not combine with carbon dioxide - CORRECT ANSWER A.
Globin
Which is not an end product of the breakdown of hemoglobin?
A. Amino acids
B. Bilirubin
C. Free oxygen
D. Iron - CORRECT ANSWER C. Free Oxygen
Which of the following substances is not secreted by platelets?
A. ADP
B. Thromboxanes
C. Arachidonic acid
D. All of the above are secreted by platelets - CORRECT ANSWER A. ADP
Whole blood constitutes to what percent of total body weight? - CORRECT
ANSWER 8%
Which characteristic of blood makes it especially effective in temperature regulation?
- CORRECT ANSWER High specific heat capacity
The most mature developing red blood cell that still contains a nucleus is a:
A. Reticulocyte
B. Polychromic Erythroblast
C. Basophilic Erythroblast
D. Proerythroblast - CORRECT ANSWER Polychromic Erythroblast
A hematocrit of 56% would be an indication of
A. Anemia
B. Leukemia
C. Leukocytosis
D. Polycythemia - CORRECT ANSWER D. Polycythemia
True or false, The right coronary artery is dominant in about 50% of all hearts -
CORRECT ANSWER True
True or false, Both atria receive their blood supply from branches of the right and left
coronary arteries - CORRECT ANSWER False