What Is The Average Lifespan Of A Red Blood Cell?
4
- 1.Blood is composed of all of the following except:
- A.
Plasma
- B.
Interstitial fluid
- C.
Blood cells
- D.
Cell fragments
- E.
Formed elements
- 2.The formed elements of the blood include
- A.
Lipoproteins
- B.
Albumins
- C.
Clotting proteins
- D.
Blood cells
- E.
Defense proteins
- 3.The most abundant proteins in blood plasma are
- A.
Albumins
- B.
Lipoproteins
- C.
Fibrinogens
- D.
Globulins
- E.
Transport proteins
- 4.The average lifespan of a red blood cell is
- A.
1 year
- B.
1 week
- C.
4 months
- D.
6 months
- E.
1 month
- 5.A hemoglobin molecule is composed of
- A.
Three protein chains
- B.
Two protein chains
- C.
Four protein chains and nothing else
- D.
Four protein chains and four heme groups
- E.
Four heme groups but no protein
- 6.Most of the iron that is removed from degraded hemoglobin is
- A.
Stored in yellow bone marrow
- B.
Excreted by the liver
- C.
Excreted by the intestines
- D.
Recycled to the bone marrow
- E.
Excreted by the kidneys
- 7.Erythropoiesis increases when
- A.
Carbon dioxide levels in the blood increase
- B.
Oxygen levels in the blood decrease
- C.
Oxygen levels in the blood increase
- D.
Protein levels in the blood increase
- E.
Carbon dioxide levels in the blood decrease
- 8.A normal adult hematrocrit would be
- A.
45
- B.
100
- C.
75
- D.
66
- E.
10
- 9.All of the following are true of neurtrophils except that they are
- A.
Important in coagulation
- B.
Phagocytic
- C.
Granular leukocytes
- D.
Also known as polymorphonuclear leukocytes
- E.
Active in fighting bacterial infections
- 10.Red blood cell production is regulated by the hormone
- A.
Cobalamin
- B.
Thymosin
- C.
M-CSF
- D.
Angiotensin I
- E.
Erythropoietin
- 11.The function of hemoglobin is to
- A.
Carry oxygen
- B.
Aid in the process of blood clotting
- C.
Protect the body against infectious agents
- D.
Carry nutrients from the intestine to the body's cells
- E.
Both A and C
- 12.The process of red blood cell production is called
- A.
Hemocytosis
- B.
Erythrocytosis
- C.
Erythropoiesis
- D.
Hematopenia
- E.
Erythropenia
- 13.A person's blood type is determined by the
- A.
Number of specific molecules on the cell membrane
- B.
Presence or absence of specific antigen on the cell membrane
- C.
Shape of the red blood cells
- D.
Chemical character of the hemoglobin
- E.
Size of the red blood cells
- 14.A person with type A negative blood
- A.
Would have neither the A or B antigen but does have the RH antigen
- B.
Would have a RBC with B antigens and the RH antigen on the cell membrane
- C.
Would have a RBC with A antigens and the RH antigen on the cell membrane
- D.
Would only have the A antigen
- E.
Would have the A antigen but does not have the RH antigen
- 15.The most numerous white blood cells in the peripheral circulation are the
- A.
Monocytes
- B.
Eusinophils
- C.
Neutrophils
- D.
Lymphocytes
- E.
Basophils
- 16.White blood cells that release histamine at the site of an injury are
- A.
Eusinophils
- B.
Monocytes
- C.
Basophils
- D.
Lymphocytes
- E.
Neutrophils
- 17.________ are large phagocytic white cells that spend most of their time outside of the blood as fixed and free phagocytic cells
- A.
Neutrophils
- B.
Eusinophils
- C.
Monocytes
- D.
Basophils
- E.
Lymphocytes
- 18.The white blood cells that are important in producing antibodies are the
- A.
Basophils
- B.
Neutrophils
- C.
Monocytes
- D.
Lymphocytes
- E.
Eusinophils
- 19.Platelets function in all of the following, except:
- A.
Dissolving a formed clot
- B.
Transporting chemicals important for clotting
- C.
Contraction after clot formation
- D.
Initiating the clotting process
- E.
Forming temporary patches in injured areas
- 20.The following is a list of the steps involved in the process of hemostasis. 1. coagulation 2. fibrinolysis 3. vascular spasm 4. retraction 5. platelet phase The correct sequence of these steps is:
- A.
5, 1, 4, 2, 3
- B.
4, 3, 5, 2, 1
- C.
3, 5, 1, 4, 2
- D.
2, 3, 5, 1, 4
- E.
3, 5, 4, 1, 2
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