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Challenge Yourself
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1
In the adult, the stem cells for leukocytes reside in the
A)bloodstream.
B)red bone marrow.
C)liver.
D)muscle.
2
Which type of leukocyte increases during allergic reactions and parasitic worm infections?
A)basophil
B)eosinophil
C)lymphocyte
D)neutrophil
3
This cell forms platelets in the red bone marrow:
A)lymphocyte
B)megakaryocyte
C)eosinophil
D)reticulocyte
4
Which of the following is not a function of blood?
A)prevention of fluid loss
B)nutrient and waste transport
C)maintenance of constant pH levels
D)production of hormones
5
A person with blood type A has
A)anti-B antibodies in her blood plasma.
B)anti-A antibodies in her blood plasma.
C)both anti-A and anti-B antibodies in her blood plasma.
D)no antibodies in her blood plasma.
6
The hematocrit is a measure of
A)water concentration in the plasma.
B)the percentage of erythrocytes in the blood.
C)the number of platelets in the blood.
D)antibody concentration in the plasma.
7
Oxygen attaches to a(n)_____ion in hemoglobin.
A)calcium
B)sodium
C)iron
D)potassium
8
During the recycling of components following the normal destruction of erythrocytes, globin is broken down, and its components are
A)used to synthesize new proteins.
B)stored as iron in the liver.
C)eliminated from the body in the bile.
D)removed in the urine.
9
The type of leukocyte that produces antibodies is a (an)
A)eosinophil.
B)basophil.
C)T-lymphocyte.
D)B-lymphocyte.
10
Which of the following is not a characteristic of a mature erythrocyte?
A)It has a biconcave disc shape.
B)It lacks organelles.
C)Its usual life span is about 12 months.
D)It is filled with hemoglobin.





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