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BIOS 255: Week 1 - The Cardiovascular System
(Blood) Exam Questions and Answers 100% Pass
Which of the following is not a function of blood? - ANSWER ✔✔-produces hormones
What are the components of the circulatory system? - ANSWER ✔✔-heart, blood vessels, blood
The type of blood cells that help fight infection are: - ANSWER ✔✔-leukocytes
The process of producing the formed elements of blood is called: - ANSWER ✔✔-hematopoiesis
If you need to examine antibodies against a virus in a patient, which part of the blood will you need? -
ANSWER ✔✔-plasma
An athlete is training for a marathon, which hormone do you think may help in enhancing the
performance in the competition? - ANSWER ✔✔-erythropoietin
In blood plasma, the % of water is approximately: - ANSWER ✔✔-92%
Plasma resembles serum but has which additional protein? - ANSWER ✔✔-fibrinogen
As a result of liver failure, blood protein concentration: - ANSWER ✔✔-decreases and water accumulates
in tissue spaces
Which plasma protein is accurately described? - ANSWER ✔✔-Immunoglobulin: Fighting infections
Between all three plasma proteins, which is the most abundant? - ANSWER ✔✔-albumin
Centrifugation of blood gives a buffy coat. This does NOT contain ________. - ANSWER ✔✔-erythrocytes
A normal hematocrit is ________ of the total blood volume. - ANSWER ✔✔-37% to 52%
Created by Grace Amelia © 2025, All Rights Reserved.
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"Formed elements" in our blood include: - ANSWER ✔✔-blood cells and platelets
Which leukocytes are classified as agranulocytes? - ANSWER ✔✔-lymphocytes and monocytes
Which of the following proteins is not normally found in plasma? - ANSWER ✔✔-hemoglobin
Where does hematopoiesis take place in adults? - ANSWER ✔✔-red bone marrow
The percentage of red blood cells within a volume of blood is: - ANSWER ✔✔-hematocrit
The myeoblast cell line gives rise to which mature blood cells? - ANSWER ✔✔-neutrophils and basophils
What are the two principal functions of erythrocytes? - ANSWER ✔✔-transfer oxygen from lungs to
tissues and carbon dioxide from tissues to lungs
The most common type of formed elements in blood are of this type: - ANSWER ✔✔-erythrocytes
The biconcave formed elements that lack mitochondria and a nucleus are called: - ANSWER ✔✔-red
blood cells
Hemoglobin helps in carrying __________ gas. - ANSWER ✔✔-carbon dioxide and oxygen
Which of the following are characteristics of type A positive blood. - ANSWER ✔✔-- erythrocytes have
Rh antigens.
- plasma has anti-B antibodies.
- erythrocytes have A antigens.
Old erythrocytes are phagocytized by: - ANSWER ✔✔-macrophages
Erythroblastosis fetalis may occur when: - ANSWER ✔✔-a second Rh-positive fetus develops in an Rh-
negative woman.
Erythrocytes have a life span of how many days? - ANSWER ✔✔-120
Created by Grace Amelia © 2025, All Rights Reserved.
BIOS 255: Week 1 - The Cardiovascular System
(Blood) Exam Questions and Answers 100% Pass
Which of the following is not a function of blood? - ANSWER ✔✔-produces hormones
What are the components of the circulatory system? - ANSWER ✔✔-heart, blood vessels, blood
The type of blood cells that help fight infection are: - ANSWER ✔✔-leukocytes
The process of producing the formed elements of blood is called: - ANSWER ✔✔-hematopoiesis
If you need to examine antibodies against a virus in a patient, which part of the blood will you need? -
ANSWER ✔✔-plasma
An athlete is training for a marathon, which hormone do you think may help in enhancing the
performance in the competition? - ANSWER ✔✔-erythropoietin
In blood plasma, the % of water is approximately: - ANSWER ✔✔-92%
Plasma resembles serum but has which additional protein? - ANSWER ✔✔-fibrinogen
As a result of liver failure, blood protein concentration: - ANSWER ✔✔-decreases and water accumulates
in tissue spaces
Which plasma protein is accurately described? - ANSWER ✔✔-Immunoglobulin: Fighting infections
Between all three plasma proteins, which is the most abundant? - ANSWER ✔✔-albumin
Centrifugation of blood gives a buffy coat. This does NOT contain ________. - ANSWER ✔✔-erythrocytes
A normal hematocrit is ________ of the total blood volume. - ANSWER ✔✔-37% to 52%
Created by Grace Amelia © 2025, All Rights Reserved.
, 2|Page
"Formed elements" in our blood include: - ANSWER ✔✔-blood cells and platelets
Which leukocytes are classified as agranulocytes? - ANSWER ✔✔-lymphocytes and monocytes
Which of the following proteins is not normally found in plasma? - ANSWER ✔✔-hemoglobin
Where does hematopoiesis take place in adults? - ANSWER ✔✔-red bone marrow
The percentage of red blood cells within a volume of blood is: - ANSWER ✔✔-hematocrit
The myeoblast cell line gives rise to which mature blood cells? - ANSWER ✔✔-neutrophils and basophils
What are the two principal functions of erythrocytes? - ANSWER ✔✔-transfer oxygen from lungs to
tissues and carbon dioxide from tissues to lungs
The most common type of formed elements in blood are of this type: - ANSWER ✔✔-erythrocytes
The biconcave formed elements that lack mitochondria and a nucleus are called: - ANSWER ✔✔-red
blood cells
Hemoglobin helps in carrying __________ gas. - ANSWER ✔✔-carbon dioxide and oxygen
Which of the following are characteristics of type A positive blood. - ANSWER ✔✔-- erythrocytes have
Rh antigens.
- plasma has anti-B antibodies.
- erythrocytes have A antigens.
Old erythrocytes are phagocytized by: - ANSWER ✔✔-macrophages
Erythroblastosis fetalis may occur when: - ANSWER ✔✔-a second Rh-positive fetus develops in an Rh-
negative woman.
Erythrocytes have a life span of how many days? - ANSWER ✔✔-120
Created by Grace Amelia © 2025, All Rights Reserved.
