Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
4th Edition
ISBN: 9781260159363
Author: Martin, Terry R., Prentice-craver, Cynthia
Publisher: McGraw-Hill Publishing Co.
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Chapter 43, Problem 1PL
Summary Introduction

Introduction:

Antigens are the substances which are specifically bounded by antibodies. It is a structural molecule that binds specifically to an antibody only in the form of a native antigen. It evokes an immune response either alone or forming a complex with larger molecules and that is capable of binding with a product of the immune response.

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Answer to Problem 1PL

Correct answer:

The correct answer is option (a) on the red blood cell membranes.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) on the red blood cell membranes. The blood typing involves the identifying of protein substances called antigens, present on the outer surface of the red blood cell membranes. These include the antigens of the ABO group and those of the Rh group. The ABO blood group antigens are attached to the oligosaccharide chains that project over the surface of red blood cells. These chains are attached to proteins and lipids that lie over the surface of the red blood cell membrane. So, the correct answer is option (b).

Explanation for incorrect answer:

Option (b) within the red blood cell nucleus. The ABO blood group antigens are attached to the oligosaccharide chains that project over the surface of red blood cells and not within the nucleus. Also, the red blood cells are devoid of nucleus. So, this is an incorrect option.

Option (c) within the red blood cell cytosol. The ABO blood group antigens are attached to the oligosaccharide chains that project over the surface of red blood cells and not within the cytosol. So, this is an incorrect answer.

Option (d) on the surface of red blood cell ribosome. The ABO blood group antigens are attached to the oligosaccharide chains that project over the surface of red blood cells. These chains are attached to proteins and lipids that lie over the surface of the red blood cell membrane and not ribosome. So, this is an incorrect answer.

Conclusion

Thus, the antigens related to the ABO blood group are located on the surface of the red blood cell membranes.

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What does the term hematocrit mean? a) The number of white blood cells in the blood b) The number of red blood cells in the blood c) The percentage of red blood cells in the blood d) The critical number of red blood cells we need to survive
Which of the following is correct regarding individuals who are blood type AB? A) Their red blood cells only have the H antigen. B) They carry anti-A antibodies. C) They carry anti-B antibodies. D) They are the universal donors. E) They are the universal recipients.
Which of the following statements is TRUE regarding the ABO blood system?   A. People who have the O blood type  would not produce the anti-A and anti-B antibodies.   B. People who have the B antigen would not produce the anti-B antibody.   C. People who have the A antigen would produce the anti-A antibody.   D. People who have the AB blood type would produce the anti-A and anti-B antibodies.
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