BIOL 3204 EXAM 4 QUESTIONS & ANSWERS
Which of the following statements are TRUE regarding blood and blood vessels:
1. arteries, arterioles, and veins all contain smooth muscle 2. capillaries are made of
only endothelial cells
3. oxygen, carbon dioxide, hormones, white blood cells, and glucose all can be found in
the blood
4. platelets are cell fragments that break off from megakaryocytes
5. red blood cells contain hemoglobin but not nuclei, ribosomes, or mitochondria
A all of the above are TRUE
B none of the above are TRUE
C 1, 3, and 4 are TRUE
D 1, 3, and 5 are TRUE
E 1, 2, and 3 are TRUE - Answer -A. all of the above are TRUE
Bile is synthesized in the ................. and its main function is to ...............
A Pancreas; digestion of proteins
B Small intestine; digestion of carbohydrates
C Colon; digestion of lipids
D Liver; digestion of lipids
E Liver; digestion of proteins - Answer -D. Liver; digestion of lipids
The inner lining of blood vessels is called
A endocardium.
B endoangium.
c endothelium.
D basal lamina.
E endostatin. - Answer -c. endothelium.
Smooth muscle is present in the walls of
A veins only.
B arteries only.
C capillary only.
D capillary and venule.
E arteries, veins but not in capillaries - Answer -E. arteries, veins but not in capillaries
All of the following would cause an increase in blood pressure EXCEPT
A an increase in arterial resistance.
B a decrease in arterial diameter.
C a decrease in cardiac output.
D sympathetic stimulation. - Answer -C. a decrease in cardiac output.
Compared to arteries, the velocity of flow of the blood through the capillaries is
A at least 10 times faster.
, B at least twice as fast.
C about the same.
D much slower.
E impossible to predict without more information - Answer -D. much slower.
The cell that is the progenitor of all the types of blood cells is called the
A pluripotent hematopoietic stem cell.
B committed progenitor cell.
C megakaryocyte.
D reticulocyte.
E progenitor. - Answer -A. pluripotent hematopoietic stem cell.
Red blood cell production is regulated by the hormone
A thymosin
B angiotensin I.
C erythropoietin.
D M-CSF.
E cobalamin. - Answer -C. erythropoietin.
The primary organ where erythropoietin is produced is the
A liver
B kidney
C spleen
D bone marrow.
E endothelial cells throughout the body. - Answer -B. kidney
The function of red blood cells is to
A remove carbon dioxide from the lungs.
B remove nitrogenous wastes from active tissues.
C carry oxygen from the lungs to the body's cells.
D carry nutrients from the digestive system to the body's cells.
E defend the body against infectious organisms. - Answer -C. carry oxygen from the
lungs to the body's cells
The upper respiratory tract includes all EXCEPT which of the following?
A nasal cavity
B lungs
C trachea
D larynx
E mouth - Answer -B. lungs
The actual sites of gas exchange within the lungs are
A bronchioles
B alveolar ducts.
C pleural spaces.
D alveoli
Which of the following statements are TRUE regarding blood and blood vessels:
1. arteries, arterioles, and veins all contain smooth muscle 2. capillaries are made of
only endothelial cells
3. oxygen, carbon dioxide, hormones, white blood cells, and glucose all can be found in
the blood
4. platelets are cell fragments that break off from megakaryocytes
5. red blood cells contain hemoglobin but not nuclei, ribosomes, or mitochondria
A all of the above are TRUE
B none of the above are TRUE
C 1, 3, and 4 are TRUE
D 1, 3, and 5 are TRUE
E 1, 2, and 3 are TRUE - Answer -A. all of the above are TRUE
Bile is synthesized in the ................. and its main function is to ...............
A Pancreas; digestion of proteins
B Small intestine; digestion of carbohydrates
C Colon; digestion of lipids
D Liver; digestion of lipids
E Liver; digestion of proteins - Answer -D. Liver; digestion of lipids
The inner lining of blood vessels is called
A endocardium.
B endoangium.
c endothelium.
D basal lamina.
E endostatin. - Answer -c. endothelium.
Smooth muscle is present in the walls of
A veins only.
B arteries only.
C capillary only.
D capillary and venule.
E arteries, veins but not in capillaries - Answer -E. arteries, veins but not in capillaries
All of the following would cause an increase in blood pressure EXCEPT
A an increase in arterial resistance.
B a decrease in arterial diameter.
C a decrease in cardiac output.
D sympathetic stimulation. - Answer -C. a decrease in cardiac output.
Compared to arteries, the velocity of flow of the blood through the capillaries is
A at least 10 times faster.
, B at least twice as fast.
C about the same.
D much slower.
E impossible to predict without more information - Answer -D. much slower.
The cell that is the progenitor of all the types of blood cells is called the
A pluripotent hematopoietic stem cell.
B committed progenitor cell.
C megakaryocyte.
D reticulocyte.
E progenitor. - Answer -A. pluripotent hematopoietic stem cell.
Red blood cell production is regulated by the hormone
A thymosin
B angiotensin I.
C erythropoietin.
D M-CSF.
E cobalamin. - Answer -C. erythropoietin.
The primary organ where erythropoietin is produced is the
A liver
B kidney
C spleen
D bone marrow.
E endothelial cells throughout the body. - Answer -B. kidney
The function of red blood cells is to
A remove carbon dioxide from the lungs.
B remove nitrogenous wastes from active tissues.
C carry oxygen from the lungs to the body's cells.
D carry nutrients from the digestive system to the body's cells.
E defend the body against infectious organisms. - Answer -C. carry oxygen from the
lungs to the body's cells
The upper respiratory tract includes all EXCEPT which of the following?
A nasal cavity
B lungs
C trachea
D larynx
E mouth - Answer -B. lungs
The actual sites of gas exchange within the lungs are
A bronchioles
B alveolar ducts.
C pleural spaces.
D alveoli
