QUIZ 3 QUESTIONS & ANSWERS
Question 1 of 32
3.0/ 3.0 Points
Which of the following is/are true of the molecule named hemoglobin?
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A. It numbers approximately 1 to 2 million in each erythrocyte.
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B. It can bind to only one molecule of oxygen.
•
C. It is a very...
Which of the following is/are true of the molecule named hemoglobin?
•
A. It numbers approximately 1 to 2 million in each erythrocyte.
•
B. It can bind to only one molecule of oxygen.
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C. It is a very simple protein structure.
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D. It contains four folded chains of a protein named globin.
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E. It functions as the nucleus in all mature erythrocytes.
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correct! Question 2 of 32
3.0/ 3.0 Points
Which of the following is the primary function of red blood cells?
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A. To bind some ions and molecules in the blood which are not water-soluble.
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,B. To bind and carry away waste products from most cells of the body.
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C. To help in the process of hemostasis, the stoppage of blood flow following damage to a blood vessel.
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D. To help fight off infection as part of the immune system.
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E. To carry oxygen from the lungs to all cells of the body; to carry some carbon dioxide from the
cells back to the lungs.
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correct! Question 3 of 32
3.0/ 3.0 Points
Which of the following is/are true of platelets?
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A. Platelets are sometimes referred to as thrombocytes.
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B. Platelets are actually pieces of large cells called a megakaryocytes.
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C. Platelets are very small, but very numerous, sometimes numbering 150,000 to 160,000 per
microliter of blood.
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D. Platelets are critical to hemostasis, the stoppage of blood flow following damage to a vessel.
, •
E. All of the above are true.
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correct! Question 4 of 32
0.0/ 3.0 Points
The blood type of a person’s blood depends on which of the following factors?
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A. Which of the three antigens, A, B, and/or O, are located on the surface of the erythrocytes.
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B. Which of two antigens, Rh+ or Rh-, are located on the surface of the erythrocytes.
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C. Which of the two antigens, A or B or both, are located on the surface of the erythrocytes.
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D. Whether or not the Rh antigen is found on the surface of the erythrocytes.
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E. The blood type depends on both C and D.
Feedback:The ABO part of the blood type depends on which of the A and B antigens, or both, or neither,
are found on the surface of the erythrocytes. Whether the blood is Rh+ or Rh- depends on whether or
not the Rh antigen is present.
Question 5 of 32
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