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bio 40b > Ch 19 Textbook Quiz > Flashcards

Ch 19 Textbook Quiz Flashcards

1
Q

Which of the following would be a normal hematocrit in an adult male
a) 22%
b) 36%
c) 47%
d) 73%

A

c) 47%

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2
Q

which of the following is NOT a function of blood
a) transport of dissolved gases
b) distribution of nutrients
c) restriction of fluid losses through damaged vessels
d) digestion of nutrients

A

d) digestion of nutrients

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3
Q

plasma proteins which act as antibodies and attack foreign proteins are classified as

A

gamma globulins

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4
Q

an adult human contains about ___ of blood

A

4-6 L

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5
Q

blood makes up __ of the total body mass

A

less than 10 percent

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6
Q

the most abundant molecule present in blood plasma is

A

water

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7
Q

the primary site of hemopoiesis in adult humans is in the

A

red bone marrow

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8
Q

the specific process by which RBCs are formed is called

A

erythropoiesis

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9
Q

chemotherapy tends to destroy normal marrow cells as well as cancerous cells. Which of the following might be used to stimulate hemopoiesis in a cancer patient?

A

erythropoietin

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10
Q

the stem cell that differentiates to form all types of blood cells is the

A

pluripotent stem cell

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11
Q

aged RBCs are destroyed mainly by macrophages in the

A

spleen

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12
Q

which of the following statements is true:
a) Iron is stored in the liver as globin
b) The globin portion of Hgb is eliminated as urobilinogen
c) Biliverdin is produced from the breakdown of the non-iron portion of heme
d) RBCs can live for years before being broken down

A

C

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13
Q

A high reticulocyte count might indicate

A

increased production of RBCs

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14
Q

which blood cell type is elevated in a parasitic infection

A

eosinophils

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15
Q

which of the following is an agranular leukocyte that leaves the blood and becomes a wandering macrophage

A

monocyte

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16
Q

WBCs are identified microscopically by the shape of their __ and the presence or absence of __ in the cytoplasm

A

nuclei, granules

17
Q

neutrophils and macrophages are active in

A

phagocytosis

18
Q

which formed elements of the blood are produced from fragmentation of megakaryocytes

A

thrombocytes

19
Q

which of the following statements describes platelets:
a) platelets are cytoplasmic fragments containing clotting elements
b) platelets are fully formed cells with clotting elements
c) platelets are derived from WBCs
d) platelets are derived from RBCs

A

a

20
Q

when a blood vessel is damaged, clot formation includes the conversion of fibrinogen into ___ by the action of the enzyme __

A

fibrin, thrombin

21
Q

vascular spasms and platelet plug formation are steps in

A

hemostasis

22
Q

during clotting, prothrombin is activated to form

A

thrombin

23
Q

which of the following begins the common pathway in clotting:
a) release of tissue factor
b) formation of prothrombinase
c) formation of fibrinogen
d) release of thromboplastin

A

b

24
Q

fibrinolysis refers to

A

dissolution of a clot

25
Q

clotting may occur in an undamaged blood vessel. When that clot breaks loose and circulates through the bloodstream it is called

A

an embolus

26
Q

which blood type in theory could be considered the universal donor

A

O

27
Q

An individual who lacks A and B agglutinogens and has both A and B agglutinins has ABO blood type

A

O

28
Q

In the condition “hemolytic disease of the newborn”

A

the baby’s blood cells hemolyze because anti-Rh antibodies produced by the mother cross the placenta

29
Q

which of the following is true concerning the Rh blood group:
a) presence or absence of Rh antigens is genetically determined
b) people with blood type B are really B negative
c) being Rh- is associated with sickle-cell disease
d) Rh+ people can give blood to anyone

A

A

30
Q

the presence of an abnormal hemoglobin molecule results in the inability of RBCs to maintain their shape when oxygen levels in the blood decrease. This condition is known as

A

sickle-cell disease

31
Q

an inherited inability to produce clotting factor VIII or IX results in the condition known as

A

hemophilia

32
Q

Inadequate absorption of vitamin B12 leads to ___ anemia

A

pernicious

33
Q

which of the following blood diseases is characterized by the production of large numbers of immature leukocytes

A

leukemia

bio 40b (25 decks)

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