1. Anemia is the general term for conditions that result in the blood not being

Question

1. Anemia is the general term for conditions that result in the blood not being able to carry enough oxygen to the tissues in the body. This can be due to a person's inability to produce enough normal hemoglobin molecules and/or red blood cells.

Which type of anemia is due to a decrease in red blood cell production because of a vitamin B12 deficiency?

Select one:

a. sickle cell anemia

b. pernicious anemia

c. iron-deficiency anemia

2. Which is the most common blood type in the US?

Select one:

a. A

b. B

c. AB

d. O

3. Which of the following is found in plasma?

Select one or more:

a. vitamins

b. red blood cells

c. hormones

d. platelets

e. all of the above

4. Cells that can differentiate into any of the formed elements (red blood cells, white blood cells, platelets) are celled Answer cells

5. Eosinophils and monocytes are involved in allergic reactions.

Select one:

True

False

6. Hemoglobin is the molecule that floats around in blood and carries oxygen molecules to the tissues in your body.

True or false: Oxygen binds to the iron in the hemoglobin molecule.

Select one:

True

False

7. Hemolytic disease of the newborn can happen during a woman's first pregnancy where the mother is Rh- and the fetus is Rh+.

Select one:

True

False

8. Leukemia is cancer of the white blood cell. It is the result of an abnormal white blood cell multiplying uncontrollably. Why is it so letal? Because it takes over the red bone marrow and doesn't allow normal red blood cells, white blood cells and platelets to form.  

True or false:

Without enough red blood cells, you can't bring oxygen to the tissues in your body.

Without enough platelets, you won't be able to form clots, for instance, to stop you from bleeding when you get a cut.

Without enough normal white blood cells, you cannot fight infections properly.

Select one:

True

False

9. The neutrophil is the first white blood cell to arrive at the site of an infection.

Select one:

True

False

10. Blood clots serve to stop a person from bleeding, for instance, when they get a cut (a blood vessel is broken open). When a blood clot forms in an unbroken blood vessel, it is called an embolus; when the embolus breaks free from the wall of that blood vessel, it is called a thrombus.

Select one:

True

False

Explanation / Answer

1)

The deficiency of vitamin B12 cases pernicious anemia. Thus, the correct option is (b).

2)

The most common blood type in the US is O. Thus, the correct option is (d).

3)

The plasma contains vitamins, red blood cells, hormones and platelets. Thus, the correct option is (e) all of the above.

4)

The stem cells can differentiate into any of the formed elements (red blood cells, white blood cells, platelets).

5)

Eosinophils and monocytes are involved in allergic reactions, thus the correct option is (true).

6)

Hemoglobin is the molecule that floats around in blood and carries oxygen molecules to the tissues in your body is a true statement.

Oxygen binds to the iron in the hemoglobin molecule is a true statement.

7)

The given statement is false.

8)

The given statements are true.

9)

The neutrophil is the first white blood cell to arrive at the site of an infection is a true statement.

10)

The given statement is true.

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