Blood 1

Question 1

Functions of the blood include all of the
following, except
A.	transport of nutrients and wastes.
B.	generation of body heat.
C.	restricting fluid loss.
D.	body defense.
E.	regulation of pH and electrolyte concentration
of interstitial fluids.

Answer 1

B. generation of body heat.

Question 2

Red blood cell production is regulated by
the hormone
A.	thymosin.
B.	angiotensin I.
C.	erythropoietin.
D.	M-CSF.
E.	cobalamin.

Answer 2

C. erythropoietin.

Question 3

Damaged endothelial cells in the blood
vessels trigger the \_\_\_\_\_ pathway.
A.	extrinsic
B.	intrinsic
C.	common
D.	retraction
E.	fibrinolytic

Answer 3

B. intrinsic

Question 4

All of the following are true of
neutrophils, except that they are
A. granular leukocytes.
B. phagocytic.
C. also known as polymorphonuclear leukocytes.
D. important in coagulation.
E. active in fighting bacterial infections.

Answer 4

D. important in coagulation.

Question 5

Which of the following vitamins is needed
for the formation of clotting factors?
A.	vitamin A
B.	vitamin B
C.	vitamin K
D.	vitamin D
E.	vitamin E

Answer 5

C. vitamin K

Question 6

Which of the following statements
concerning red blood cells is false?
A.	Red cells are biconcave discs.
B.	Red cells lack mitochondria.
C.	Red cells have a large nucleus.
D.	Red cells are specialized for carrying oxygen.

Answer 6

C. Red cells have a large nucleus.

Question 7

Blood is composed of all of the following,
except
A.	plasma.
B.	formed elements.
C.	blood cells.
D.	cell fragments.
E.	interstitial fluid.

Answer 7

E. interstitial fluid.

Question 8

The most numerous white blood cells in
peripheral circulation are the
A.	neutrophils.
B.	eosinophils.
C.	basophils.
D.	lymphocytes.
E.	monocytes.

Answer 8

A. neutrophils.

Question 9

A drifting blood clot is called a(n)
A.	embolus.
B.	thrombus.
C.	plaque.
D.	procoagulant.
E.	platelet plug.

Answer 9

A. embolus.

Question 10

The average lifespan of a red blood cell is
A.	1 week.
B.	1 month.
C.	4 months.
D.	6 months.
E.	1 year.

Answer 10

C. 4 months.

Question 11

Areas where smooth muscle cells store
large quantities of lipid are called
A.	thrombi.
B.	emboli.
C.	plaque.
D.	clots.
E.	occlusions.

Answer 11

C. plaque.

Question 12

The formed elements of the blood include
A.	blood cells.
B.	clotting proteins.
C.	defense proteins.
D.	lipoproteins.
E.	albumins.

Answer 12

A. blood cells.

Question 13

White blood cells that release histamine at
the site of an injury are
A.	neutrophils.
B.	eosinophils.
C.	basophils.
D.	lymphocytes.
E.	monocytes.

Answer 13

C. basophils.

Question 14

The function of red blood cells is to
A. remove carbon dioxide from active cells.
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 14

C. carry oxygen from the lungs to the body’s

cells.

Question 15

Circulating blood provides all of the
following, except
A.	nutrients.
B.	waste removal.
C.	CO2.
D.	hormone transportation.
E.	cell transportation.

Answer 15

C. CO2.

Question 16

Plasma is close to the same density as
A.	urine.
B.	honey.
C.	water.
D.	CSF.
E.	syrup.

Answer 16

C. water.

Question 17

The combination of plasma and formed
elements is called
A.	serum.
B.	lymph.
C.	whole blood.
D.	extracellular fluid.
E.	packed blood.

Answer 17

C. whole blood.

Question 18

More than 95 percent of the protein in a
red blood cell is
A.	albumin.
B.	porphyrin.
C.	hemoglobin.
D.	immunoglobulin.
E.	fibrinogen.

Answer 18

C. hemoglobin.

Question 19

\_\_\_\_\_ are large phagocytic white cells that
spend most of their time outside the blood
as fixed and free phagocytic cells.
A.	Neutrophils
B.	Eosinophils
C.	Basophils
D.	Lymphocytes
E.	Monocytes

Answer 19

E. Monocytes

Question 20

Which of the following drives a
continuous exchange of fluids between the
tissues and the blood?
A.	concentration gradients
B.	osmosis
C.	diffusion
D.	both A and B
E.	both B and C

Answer 20

D. both A and B

Question 21

Which of the following can be found in
plasma?
A.	electrolytes
B.	lipids
C.	fibrinogen
D.	enzymes
E.	all of the above

Answer 21

E. all of the above

Question 22

Fresh whole blood for testing in a
laboratory is usually collected from
A.	the heart.
B.	a superficial artery.
C.	a superficial vein.
D.	a capillary.
E.	an arteriole.

Answer 22

C. a superficial vein.

Question 23

The white blood cells that are important in
producing antibodies are the
A.	neutrophils.
B.	eosinophils.
C.	basophils.
D.	lymphocytes.
E.	monocytes.

Answer 23

D. lymphocytes.

Question 24

The temperature of blood is \_\_\_\_\_ body
temperature.
A.	lower than
B.	the same as
C.	3 degrees higher than
D.	higher than
E.	none of the above

Answer 24

D. higher than

Question 25

The function of hemoglobin is to A. carry oxygen. B. protect the body against infectious agents. C. aid in the process of blood clotting. D. carry nutrients from the intestine to the body’s cells. E. both A and C

Answer 25

A. carry oxygen.