Blood 3

Question 1

The waste product bilirubin is produced
from
A. globin chains of hemoglobin.
B. portions of heme molecules that contain iron.
C. portions of heme molecules that do not
contain iron.
D. iron found in hemoglobin molecules.
E. abnormal proteins found in red blood cells.

Answer 1

C. portions of heme molecules that do not

contain iron.

Question 2

A drop of deoxyhemoglobin blood is what
color?
A.	red
B.	light blue
C.	dusky orange
D.	blue
E.	burgundy

Answer 2

E. burgundy

Question 3

Plasma proteins that are necessary for
blood clotting are the
A.	albumins.
B.	fibrinogens.
C.	immunoglobulins.
D.	metalloproteins.
E.	lipoproteins.

Answer 3

B. fibrinogens.

Question 4

The main event of the platelet phase is
A.	vascular spasm.
B.	activation of fibrinogen.
C.	clot retraction.
D.	formation of a platelet plug.
E.	contraction of platelets.

Answer 4

D. formation of a platelet plug.

Question 5

As a result of breaking down large
amounts of RBCs, your skin may appear
\_\_\_\_\_ in color.
A.	tan
B.	pink
C.	yellow
D.	red
E.	none of the above

Answer 5

C. yellow

Question 6

Most of the iron that is removed from
degraded hemoglobin is
A.	excreted by the kidneys.
B.	excreted by the liver.
C.	excreted by the intestines.
D.	recycled to the bone marrow.
E.	stored in yellow bone marrow.

Answer 6

D. recycled to the bone marrow.

Question 7

After losing a fair amount of blood as a
result of an accident, one would expect
A.	an increased reticulocyte count.
B.	a decreased reticulocyte count.
C.	an increased erythrocyte count.
D.	a decreased erythrocyte count.
E.	increased levels of tissue plasminogen
activator.

Answer 7

A. an increased reticulocyte count.

Question 8

\_\_\_\_\_ involves a complex sequence of
steps leading to the conversion of
fibrinogen to fibrin.
A.	Vascular spasm
B.	The platelet phase
C.	Retraction
D.	Coagulation
E.	Fibrinolysis

Answer 8

D. Coagulation

Question 9

Eileen is a strict vegetarian who is experiencing
erythropenia, a deficiency in the number of red
blood cells. This condition is most likely the
result of which of the following?
A. too much iron in the diet
B. a vitamin B12 deficiency
C. lack of intrinsic factor
D. too much vitamin K in the diet
E. too little vitamin K in the diet

Answer 9

B. a vitamin B12 deficiency

Question 10

Red blood cells are formed in
A.	the liver.
B.	the spleen.
C.	red bone marrow.
D.	yellow bone marrow.
E.	lymph nodes.

Answer 10

C. red bone marrow.

Question 11

In adults, erythropoiesis primarily takes
place in
A.	the liver.
B.	yellow bone marrow.
C.	myeloid tissue.
D.	the spleen.
E.	the kidneys.

Answer 11

C. myeloid tissue.

Question 12

Most of the procoagulants that are
required for clotting are synthesized by
A.	platelets.
B.	megakaryocytes.
C.	the liver.
D.	the kidneys.
E.	the spleen.

Answer 12

C. the liver.

Question 13

A hematocrit provides information on
A.	blood type.
B.	clotting factors.
C.	packed cell volume.
D.	plasma composition.
E.	the types of leukocytes.

Answer 13

C. packed cell volume.

Question 14

In adults, the only site of red blood cell
production, and the primary site of white
blood cell formation, is the
A.	liver.
B.	spleen.
C.	thymus.
D.	red bone marrow.
E.	yellow bone marrow.

Answer 14

D. red bone marrow.

Question 15

Stem cells responsible for the production
of most white blood cells originate in the
A. liver.
B. thymus.
C. spleen.
D. red bone marrow.
E. lymph tissue.

Answer 15

D. red bone marrow.

Question 16

In adults, red bone marrow is located in
the
A.	sternum and ribs.
B.	diaphysis of long bones.
C.	body of vertebrae.
D.	all of the above
E.	A and C only

Answer 16

E. A and C only

Question 17

The extrinsic pathway of coagulation is
activated by the
A.	sticking of platelets to damaged tissue.
B.	activation of a proenzyme exposed to
collagen.
C.	release of tissue factor by damaged
endothelium.
D.	release of heparin from the liver.
E.	conversion of prothrombin to thrombin.

Answer 17

C. release of tissue factor by damaged

endothelium.

Question 18

The most numerous WBCs in a
differential count of a healthy individual
are
A.	neutrophils.
B.	basophils.
C.	lymphocytes.
D.	monocytes.
E.	leukocytes.

Answer 18

A. neutrophils.

Question 19

A person with Type A blood has
A. antigen A in the plasma.
B. anti-B antibodies in the plasma.
C. anti-A antibodies on the red blood cells.
D. antigen B on the red blood cell membranes.
E. none of the above

Answer 19

B. anti-B antibodies in the plasma.

Question 20

Stem cells responsible for the process of
lymphopoiesis are located in all of the
following, except
A.	the spleen.
B.	the kidney.
C.	the lymph nodes.
D.	the red bone marrow.
E.	the thymus.

Answer 20

B. the kidney.

Question 21

The process of red blood cell production is
called
A.	erythrocytosis.
B.	erythropenia.
C.	hemocytosis.
D.	erythropoiesis.
E.	hematopenia.

Answer 21

D. erythropoiesis.

Question 22

The intrinsic pathway of coagulation is
activated by the
A. sticking of platelets to damaged tissue.
B. activation of proenzyme exposed to collagen.
C. release of tissue factor by damaged
endothelium.
D. release of heparin from the liver.
E. conversion of prothrombin to thrombin.

Answer 22

B. activation of proenzyme exposed to

collagen.

Question 23

Hemolytic disease of the newborn may result if
A. the mother is Rh positive and the father is Rh
negative.
B. both the father and the mother are Rh negative.
C. both the father and the mother are Rh positive.
D. an Rh negative mother carries an Rh positive fetus.
E. an Rh negative mother carries Rh negative twins.

Answer 23

D. an Rh negative mother carries an Rh positive

fetus.

Question 24

Agranular leukocytes are formed in
A.	the liver.
B.	the spleen.
C.	the thymus.
D.	red bone marrow.
E.	yellow bone marrow.

Answer 24

D. red bone marrow.

Question 25

Blood aids in the regulation of body temperature. A. True B. False

Answer 25

A. True