BSC 2086 ch 19 Exam Questions and Answers Fully Solved Latest Update 2025-2026
By helping to maintain pH and body temperature, blood functions in the maintenance of -
Answers homeostasis
The cells and cell fragments of blood are called __________ __________ the liquid matrix of blood
is called plasma - Answers formed elements
What is plasma? - Answers The water, proteins, nutrients, wastes, hormones and gases in blood
Cells and cell fragments (platelets) found in the plasma are also called ______. - Answers formed
elements
What is hemopoiesis? - Answers Production of any of the formed elements of blood
Blood's homeostatic functions include ______. Select all that apply. - Answers regulate PH
regulate body temp
protect against infection
Which of the following would be an abnormal RBC count for a woman? - Answers 6.1 million
RBCs/microliter
Blood is comprised of cells and cell fragments, together called "formed elements", suspended in
a liquid matrix called blood - Answers plasma
The complex mixture of water, proteins, nutrients, electrolytes, wastes, hormones and gases is
called - Answers plasma or matrix
What are the formed elements of the blood? - Answers The formed elements include all of the
cells and cell fragments found in the blood.
The formed element that is biconcave, anucleated and approximately 7.5 microns in diameter is
the ______. - Answers erythrocyte
The production of the formed elements of the blood is called ______. - Answers hematopoiesis
Which of the following would be an abnormal RBC count for a man? - Answers 4.1 million
RBCs/microliter
How does the shape of the red blood cell influence the cell's function? - Answers The biconcave
shape increases the surface-area-to-volume ratio and facilitates gas exchange.
Which best describes a red blood cell? - Answers Biconcave, anucleate cell approximately 7.5
microns in diameter
Mature red blood cells are unable to divide or undergo protein synthesis. What feature of the cell
, accounts for this? - Answers Lack of nucleus and other organelles
Increased gas diffusion across the RBC membrane and their ability to pass through small blood
vessels can be attributed to ______. - Answers biconcave shape
The major component (protein) of red blood cells is - Answers hemoglobin
Which component of the blood transports both oxygen and carbon dioxide? - Answers
erythrocytes
True or false: Red blood cells do not undergo mitosis.
True - Answers true
Destruction of red blood cells leads to the breakdown of hemoglobin molecules. Breaking down
hemoglobin releases ______ - Answers four globin chains and four heme groups
iron is critical for the synthesis of _________ the oxygen-carrying protein in red blood cells. -
Answers hemoglobin
Describe how the unique structure of the erythrocyte plays an important role in its function.
Select all that apply. - Answers Shape and the anucleate structure give the cell more flexibility to
pass easily through small vessels.
The biconcave shape has greater surface area to allow increased diffusion.
The main component of the red blood cell is __. - Answers hemoglobin
What is the main function of red blood cells? - Answers Transport both oxygen and carbon
dioxide
Fetal, embryonic and ______ hemoglobin are the three forms of hemoglobin produced by the
human body. - Answers adult
True or false: Each hemoglobin molecule consists of 6 protein (globin) chains and 6 heme
groups. - Answers false
Keeping in mind the structure of hemoglobin, name the nutrient that is critical for hemoglobin
synthesis. - Answers iron
Embryonic and fetal hemoglobin have a ______ affinity for oxygen than does adult hemoglobin. -
Answers higher
Increased gas diffusion across the RBC membrane and their ability to pass through small blood
vessels can be attributed to ______. - Answers biconcave shape
By helping to maintain pH and body temperature, blood functions in the maintenance of -
Answers homeostasis
The cells and cell fragments of blood are called __________ __________ the liquid matrix of blood
is called plasma - Answers formed elements
What is plasma? - Answers The water, proteins, nutrients, wastes, hormones and gases in blood
Cells and cell fragments (platelets) found in the plasma are also called ______. - Answers formed
elements
What is hemopoiesis? - Answers Production of any of the formed elements of blood
Blood's homeostatic functions include ______. Select all that apply. - Answers regulate PH
regulate body temp
protect against infection
Which of the following would be an abnormal RBC count for a woman? - Answers 6.1 million
RBCs/microliter
Blood is comprised of cells and cell fragments, together called "formed elements", suspended in
a liquid matrix called blood - Answers plasma
The complex mixture of water, proteins, nutrients, electrolytes, wastes, hormones and gases is
called - Answers plasma or matrix
What are the formed elements of the blood? - Answers The formed elements include all of the
cells and cell fragments found in the blood.
The formed element that is biconcave, anucleated and approximately 7.5 microns in diameter is
the ______. - Answers erythrocyte
The production of the formed elements of the blood is called ______. - Answers hematopoiesis
Which of the following would be an abnormal RBC count for a man? - Answers 4.1 million
RBCs/microliter
How does the shape of the red blood cell influence the cell's function? - Answers The biconcave
shape increases the surface-area-to-volume ratio and facilitates gas exchange.
Which best describes a red blood cell? - Answers Biconcave, anucleate cell approximately 7.5
microns in diameter
Mature red blood cells are unable to divide or undergo protein synthesis. What feature of the cell
, accounts for this? - Answers Lack of nucleus and other organelles
Increased gas diffusion across the RBC membrane and their ability to pass through small blood
vessels can be attributed to ______. - Answers biconcave shape
The major component (protein) of red blood cells is - Answers hemoglobin
Which component of the blood transports both oxygen and carbon dioxide? - Answers
erythrocytes
True or false: Red blood cells do not undergo mitosis.
True - Answers true
Destruction of red blood cells leads to the breakdown of hemoglobin molecules. Breaking down
hemoglobin releases ______ - Answers four globin chains and four heme groups
iron is critical for the synthesis of _________ the oxygen-carrying protein in red blood cells. -
Answers hemoglobin
Describe how the unique structure of the erythrocyte plays an important role in its function.
Select all that apply. - Answers Shape and the anucleate structure give the cell more flexibility to
pass easily through small vessels.
The biconcave shape has greater surface area to allow increased diffusion.
The main component of the red blood cell is __. - Answers hemoglobin
What is the main function of red blood cells? - Answers Transport both oxygen and carbon
dioxide
Fetal, embryonic and ______ hemoglobin are the three forms of hemoglobin produced by the
human body. - Answers adult
True or false: Each hemoglobin molecule consists of 6 protein (globin) chains and 6 heme
groups. - Answers false
Keeping in mind the structure of hemoglobin, name the nutrient that is critical for hemoglobin
synthesis. - Answers iron
Embryonic and fetal hemoglobin have a ______ affinity for oxygen than does adult hemoglobin. -
Answers higher
Increased gas diffusion across the RBC membrane and their ability to pass through small blood
vessels can be attributed to ______. - Answers biconcave shape
