Bio 224A Blood pt.1 and 2 quiz

Question 1

The average lifespan of a red blood cell is

Answer 1

Four (4) months

Question 2

Thrombopoietin is secreted by the ______ and contributes to the development of ______.

Answer 2

Liver; platelets

Question 3

Which of the following ways does oxygen mostly travel in the blood?

-Dissolved in the plasma
-None of the above
-In the form of bicarbonate ion (HCO3-)
-Bound to the globin portion of the hemoglobin

Answer 3

None of the above

Question 4

___________ aid in the body’s defense processes by secreting histamine (vasodilator) and heparin (anticoagulant).

Answer 4

Basophils

Question 5

Which of the following is usually the first cell type to leave the blood and enter infected tissues?

Answer 5

Neutrophil

Question 6

Which of the following cells present a foreign antigen to other leukocytes?

Answer 6

Macrophage

Question 7

How much blood does the average adult have?

Answer 7

5L

Question 8

A centrifuged sample of blood shows 53% plasma, 1% buffy coat, and 46% erythrocytes. What percent of the blood is the hematocrit?

Answer 8

46%

Question 9

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

Answer 9

albumin

Question 10

What is the oxygen-binding protein found in erythrocytes?

Answer 10

hemoglobin

Question 11

Hemolytic disease of the newborn may result if

Answer 11

an Rh negative mother carries an Rh positive fetus

Question 12

A 16-year-old female presents to the Red Cross to donate blood. Blood typing showed that neither Anti-A nor Anti-B clotted on a blood plate. What is the young woman’s blood type?

Answer 12

O

Question 13

John has type B+ blood. In an emergency, which of the following blood type (s) and can he receive?

-Both a and c

-Type O-

-Type O+

-Type B+

-All of the above

Answer 13

All of the above

Question 14

Place the following steps of hemostasis into the correct chronological order:

1) Clot retraction

2) Platelet plug formation

3) Vascular spasm

4) Thrombolysis

5) Coagulation

Answer 14

3, 2, 5, 1, 4

Question 15

A person’s blood type is determined by the

Answer 15

presence or absence of antigen in the RBC plasma membrane

Question 16

During hemostasis, contraction of which clot component results in clot retraction?

Answer 16

platelets

Question 17

What vitamin is necessary for the proper production of certain clotting factors by the liver?

Answer 17

vitamin K

Question 18

Which of these substances dissolves clots?

Answer 18

Plasmin

Question 19

Medications known as anticoagulants interfere with:

Answer 19

the coagulation cascade

Question 20

What substance strengthens and solidifies the platelet plug into a clot?

Answer 20

fibrin