CH 19

Question 1

How much blood does the average adult have?

Answer 1

5 Liters

Question 2

The hematocrit is the percentage of blood composed of

Answer 2

erythrocytes

Question 3

What plasma protein is most important for the blood’s colloid osmotic pressure?

Answer 3

albumin

Question 4

What type of plasma protein are antibodies?

Answer 4

immune proteins

Question 5

Red blood cells possess a protein known as

Answer 5

hemoglobin

Question 6

The function of red blood cells is to transport the gases _______ and _______

Answer 6

oxygen; carbon dioxide

Question 7

Name the compound given to the union between carbon monoxide and hemoglobin?

Answer 7

carboxyhemoglobin

Question 8

Iron molecules released from the breakdown of hemoglobin are transported through the blood by

Answer 8

transferrin

Question 9

All red blood cells in an adult originate in the

Answer 9

red bone marrow

Question 10

Since erythrocytes lack the cellular machinery to make repairs, they only live _____ to ______ days

Answer 10

100-120

Question 11

What organ serves as the control center for the regulation of erythropoiesis?

Answer 11

kidney

Question 12

What event might trigger erythropoiesis?

Answer 12

blood oxygen levels fall below normal level

Question 13

Which organ traps older erythrocytes so they will be removed from circulation?

Answer 13

spleen

Question 14

A bruise appears greenish in the skin because

Answer 14

heme group has broken down into biliverdin

Question 15

Which leukocytes are active phagocytes?

Answer 15

neutrophils and monocytes

Question 16

During a tapeworm infection, you would expect to see increased numbers of

Answer 16

eosinophils

Question 17

Neutrophils are most effective at

Answer 17

fighting a bacterial infection

Question 18

Through the microscope, you notice a very large leukocyte with a U-shaped nucleus but no granules. What type of leukocyte have you observed?

Answer 18

monocyte

Question 19

Which type of leukocyte may produce antibodies?

Answer 19

lymphocyte

Question 20

Where do T lymphocytes mature?

Answer 20

thymus

Question 21

The stoppage of bleeding is known as

Answer 21

hemostasis

Question 22

When is fibrin produced during the coagulation cascade?

Answer 22

common pathway

Question 23

During the common pathway, what turns fibrinogen into fibrin?

Answer 23

thrombin

Question 24

What feature do platelets possess?

Answer 24

plasma membrane

Question 25

What featured is shared by platelets and some leukocytes?

Answer 25

presence of granules

Question 26

What is the most common type of leukocyte in a healthy adult?

Answer 26

neutrophil

Question 27

Which of the following is considered a normal blood Ph?

Answer 27

7.40

Question 28

What forms the majority of blood?

Answer 28

plasma

Question 29

What percentage of the blood is composed of plasma?

Answer 29

55%

Question 30

When blood is centrifuged, what is found in the buffy coat?

Answer 30

platelets and leukocytes