Question 1

An extrinsic factor must be provided by the diet to prevent pernicious anemia.

Accepted Answer

A) True 
 B)False

Question 2

In the formation of blood cells,the megakaryoblast ultimately develops into:

Accepted Answer

A)  lymphocytes. 
B)  platelets. 
C)  monocytes. 
D)  both A and B.

Question 3

The function of blood is to:

Accepted Answer

A)  carry food to the cells. 
B)  remove waste from the cells. 
C)  assist the body in temperature regulation. 
D)  do all of the above.

Question 4

About 45% of whole blood is plasma.

Accepted Answer

A) True 
 B)False

Question 5

Some white blood cells are capable of diapedesis,which means they can:

Accepted Answer

A)  "eat" bacteria or damaged cells. 
B)  migrate out of blood vessels into tissue spaces. 
C)  engage in protein synthesis because they have a nucleus. 
D)  change from one type of white blood cell to another.

Question 6

After Martha's baby was born,why did the physician apply a gauze dressing for a short time on the umbilical cord and give the baby a dose of vitamin K?

Accepted Answer

A)  Newborns do not have any platelets for the first 3 months and will bleed freely unless actions are taken to prevent bleeding. 
B)  Newborns often show elevated platelet counts at birth, and both of the actions taken by the physician will help the umbilical cord stop bleeding. 
C)  The physician knew that the baby would need vitamin K to replace the red blood cells lost during delivery. 
D)  Newborns often have a reduced number of platelets, which are needed to clot blood, and both of the actions taken by the physician would help the umbilical cord stop bleeding.

Question 7

People with type AB blood are considered universal recipients because their blood:

Accepted Answer

A)  does not contain the Rh antigen. 
B)  does not contain either anti-A or anti-B antibodies. 
C)  is absent of both antigen A and antigen B in the red blood cells. 
D)  Both B and C are correct.

Question 8

The rate of protein synthesis in mature red blood cells is slightly higher than in most of the cells in the body.

Accepted Answer

A) True 
 B)False

Question 9

Plasma is a straw-colored fluid that accounts for more than half the blood volume.

Accepted Answer

A) True 
 B)False

Question 10

Explain the negative feedback mechanism for the correction of low blood oxygen concentration.

Accepted Answer

The answer of Explain the negative feedback mechanism for the...

Question 11

Whole blood constitutes about what percent of total body weight?

Accepted Answer

A)  0.8% 
B)  5.3% 
C)  8% 
D)  Between 12% and 15%, depending on body type

Question 12

Only mature red blood cells are found in the circulatory system.

Accepted Answer

A) True 
 B)False

Question 13

The less fat in the body,the more blood there is per unit of body weight.

Accepted Answer

A) True 
 B)False

Question 14

Match each substance involved in blood clot formation with its description or function.
-insoluble protein that forms fine threads in the blood needed to make a clot

Accepted Answer

A) Tissue factor 
B) Calcium 
C) Fibrinogen 
D) Prothrombin activator 
E) Fibrin
F)Prothrombin
G)Vitamin K
H)Thrombin
I)Plasmin

Question 15

Which of the following Rh factor combinations could cause agglutination of an infant's red blood cells?

Accepted Answer

A)  Mother-, father+, infant+ 
B)  Mother-, father-, infant- 
C)  Mother+, father-, infant+ 
D)  Mother+, father+, infant-

Question 16

If you donate a "unit" of blood at a blood bank,you have given about 5% of your total blood volume.

Accepted Answer

A) True 
 B)False

Question 17

Under normal circumstances,there are no differences between the sexes in platelet count.

Accepted Answer

A) True 
 B)False

Question 18

Oxygen deficiency increases leukocyte numbers by increasing the secretion of erythropoietin by the kidneys.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following statements is not true of hemoglobin?

Accepted Answer

A)  Each red blood cell has between 200 million and 300 million molecules of hemoglobin. 
B)  The hemoglobin in a red blood cell makes up about 70% of the cell's dry weight. 
C)  It has four globin and four heme chains in each molecule. 
D)  All of the above statements are true of hemoglobin.

Question 20

The shape of a red blood cell increases its surface area.

Accepted Answer

A) True 
 B)False

Exam 20: Blood

An extrinsic factor must be provided by the diet to prevent pernicious anemia.

In the formation of blood cells,the megakaryoblast ultimately develops into:

The function of blood is to:

About 45% of whole blood is plasma.

Some white blood cells are capable of diapedesis,which means they can:

After Martha's baby was born,why did the physician apply a gauze dressing for a short time on the umbilical cord and give the baby a dose of vitamin K?

People with type AB blood are considered universal recipients because their blood:

The rate of protein synthesis in mature red blood cells is slightly higher than in most of the cells in the body.

Plasma is a straw-colored fluid that accounts for more than half the blood volume.

Explain the negative feedback mechanism for the correction of low blood oxygen concentration.

Whole blood constitutes about what percent of total body weight?

Only mature red blood cells are found in the circulatory system.

The less fat in the body,the more blood there is per unit of body weight.

Match each substance involved in blood clot formation with its description or function. -insoluble protein that forms fine threads in the blood needed to make a clot

Which of the following Rh factor combinations could cause agglutination of an infant's red blood cells?

If you donate a "unit" of blood at a blood bank,you have given about 5% of your total blood volume.

Under normal circumstances,there are no differences between the sexes in platelet count.

Oxygen deficiency increases leukocyte numbers by increasing the secretion of erythropoietin by the kidneys.

Which of the following statements is not true of hemoglobin?

The shape of a red blood cell increases its surface area.