Biology Forums - Study Force

Which are characteristics of type O blood?
 
  a: Has anti-A antibodies
   b: Has anti-B antibodies
   c: Has surface antigen O on its erythrocytes
   d: Has surface antigen A on its erythrocytes
   e: Has neither surface antigen A nor B on its erythrocytes
  A. a, b, c
  B. a, b, e
  C. b, c, e
  D. b, c, d
  E. c

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(Question 2) Which events occur during the recycling of aged or damaged erythrocytes? (Order is not important.)
 
  a: The heme group is converted into biliverdin.
   b: Bilirubin is placed in long-term storage in the liver.
   c: The iron ions in hemoglobin are removed.
   d: The iron ions are stored in the liver.
   e: The iron ions are stored in the red bone marrow.
   f: Membrane proteins and globin proteins are broken down and reused.
   g: The erythrocyte contents, excluding the globins, are excreted unchanged via the digestive tract.
   
  A. a, b, c, e, f
  B. a, c, d, f
  C. a, b, c, g
  D. c, d, g
  E. c, e, g

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(Question 3) How many oxygen molecules may bind to a single molecule of hemoglobin?
 
  A.  2
  B.  4
  C.  6
  D.  8
  E.  16

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(Question 4) How many globins (protein building blocks) are found in a single hemoglobin molecule?
 
  A.  1
  B.  2
  C.  4
  D.  6
  E.  8

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(Question 5) Macrophage colony-stimulating factor stimulates the production of
 
  A. granulocytes from their progenitors.
  B. erythrocytes from myeloid stem cells.
  C. megakaryocytes and platelets.
  D. monocytes from monoblasts.
  E. erythrocyte progenitor cells.

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(Question 6) Congenital hemolytic anemia is
 
  A. when destruction of erythrocytes is more rapid than normal.
  B. when there is an inherited anemia associated with a defect in iron uptake.
  C. caused by a failure of the body to absorb Vitamin B12.
  D. characterized by a large number of immature, nucleated cells.
  E. characterized by significantly decreased formation of erythrocytes and hemoglobin due to defective red bone marrow.

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(Question 7) Most colony-stimulating factors are growth factors.
 
  Indicate whether this statement is true or false.

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(Question 8) The carbon dioxide molecules that bind to the hemoglobin molecule are attached to the __________ units.
 
  A. heme
  B. globin
  C. iron
  D. calcium

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(Question 9) The process of hemopoiesis starts with hemopoietic stem cells called ________________.
 
  Fill in the blank with correct word.

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(Question 10) . Platelets are continually produced in the red bone marrow by cells called _____________.
 
  Fill in the blank with correct word.

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