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Which blood component C) Red blood cells
is primarily responsible
for oxygen transport? Rationale: Red blood cells contain hemoglobin,
A) White blood cells which binds oxygen and transports it to body
B) Platelets tissues.
C) Red blood cells
D) Plasma
What is the main protein Answer: B) Hemoglobin
in red blood cells that
binds oxygen? Rationale: Hemoglobin is the primary oxygen-
A) Albumin carrying protein in red blood cells, essential for
B) Hemoglobin oxygen delivery.
C) Fibrinogen
D) Myoglobin
Which of the following Answer: B) Eosinophils
white blood cells is
involved in the allergic Rationale: Eosinophils play a key role in allergic
response? reactions and parasitic infections.
A) Neutrophils
B) Eosinophils
C) Lymphocytes
D) Monocytes
,What is the most Answer: D) Chronic blood loss
common cause of iron
deficiency anemia? Rationale: Chronic blood loss, often due to
A) Vitamin B12 deficiency gastrointestinal bleeding or heavy menstruation,
B) Folate deficiency depletes iron stores.
C) Acute blood loss
D) Chronic blood loss
In which part of the body Answer: D) Kidneys
is erythropoietin mainly
produced? Rationale: The kidneys produce erythropoietin in
A) Liver response to low oxygen levels in the blood,
B) Bone marrow stimulating RBC production.
C) Spleen
D) Kidneys
What type of anemia is Answer: D) Pernicious anemia
caused by a lack of
intrinsic factor? Rationale: Pernicious anemia is caused by a lack of
A) Iron deficiency anemia intrinsic factor, which is necessary for vitamin B12
B) Hemolytic anemia absorption.
C) Aplastic anemia
D) Pernicious anemia
Which diagnostic test Answer: B) Complete blood count (CBC)
measures the number
and types of cells in the Rationale: CBC provides essential information about
blood? red blood cells, white blood cells, and platelets.
A) Bone marrow biopsy
B) Complete blood count
(CBC)
C) Blood smear
D) Coagulation test
What is the primary site Answer: B) Bone marrow
of hematopoiesis in
adults? Rationale: In adults, bone marrow is the primary site
A) Liver of blood cell production.
B) Bone marrow
C) Spleen
D) Yolk sac
, Which condition is Answer: B) Hemophilia
characterized by
spontaneous bleeding Rationale: Hemophilia is a genetic disorder that
into joints and muscles? impairs blood clotting, leading to spontaneous
A) Sickle cell anemia bleeding.
B) Hemophilia
C) Thrombocytopenia
D) Myeloma
What is the main function Answer: C) Blood clotting
of platelets?
A) Fight infections Rationale: Platelets aggregate at injury sites to form
B) Transport oxygen plugs and release chemicals that activate clotting.
C) Blood clotting
D) Nutrient transport
Which hematological Answer: B) Myeloma
cancer affects plasma
cells in the bone Rationale: Myeloma is characterized by cancerous
marrow? growth of plasma cells in the bone marrow.
A) Lymphoma
B) Myeloma
C) Leukemia
D) Hemophilia
What stimulates the Answer: C) Erythropoietin
production of red blood
cells in response to Rationale: Erythropoietin, primarily produced by the
hypoxia? kidneys, stimulates RBC production during hypoxia.
A) Interferon
B) Thrombopoietin
C) Erythropoietin
D) Cortisol
What term describes the Answer: C) Hematopoiesis
process of blood cell
development? Rationale: Hematopoiesis is the process by which
A) Erythropoiesis hematopoietic stem cells differentiate into various
B) Hemostasis blood cell types.
C) Hematopoiesis
D) Angiogenesis