What Is The Average Lifespan Of A Red Blood Cell?

20 Questions | By Scoburn26 | Last updated: Mar 21, 2022 | Total Attempts: 328

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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