Textbook Question
Erythropoiesis requires stimulation from the hormone:
a. Thrombin
b. Thrombopoietin
c. Thymosin
d. Erythropoietin
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17. The Blood
Introduction To Blood
2:08 minutesProblem 10
Textbook Question
Suppose your blood is AB positive. This means that:
a. Agglutinogens A and B are present on your red blood cells
b. There are no anti-A or anti-B antibodies in your plasma
c. Your blood is Rh⁺
d. All of the above
Verified step by step guidance1
Step 1: Understand the ABO blood group system. Blood type AB means that both A and B agglutinogens (antigens) are present on the surface of your red blood cells.
Step 2: Recognize that individuals with blood type AB do not have anti-A or anti-B antibodies in their plasma, because having these antibodies would cause agglutination against their own red blood cells.
Step 3: Understand the Rh factor. If the blood type is AB positive (AB⁺), it means the Rh antigen (also called the D antigen) is present on the red blood cells, making the blood Rh positive.
Step 4: Combine these facts: AB blood type means both A and B antigens are present, no anti-A or anti-B antibodies are in plasma, and the positive sign indicates the presence of the Rh antigen.
Step 5: Conclude that all the statements (a, b, and c) are true for AB positive blood, so the correct answer is 'd. All of the above.'
Verified video answer for a similar problem:This video solution was recommended by our tutors as helpful for the problem above
Video duration:
2mKey Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
AB Blood Group Antigens
The AB blood group means that both A and B agglutinogens (antigens) are present on the surface of red blood cells. This is a result of inheriting A and B alleles, causing the immune system to recognize both antigens as self.
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Plasma Antibodies in Blood Types
Individuals with AB blood type do not have anti-A or anti-B antibodies in their plasma because their immune system recognizes both A and B antigens as normal, preventing an immune reaction against these antigens.
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Rh Factor and Blood Typing
The Rh factor is a protein found on red blood cells; if present, the blood type is Rh positive (Rh⁺). Being AB positive means the person has both A and B antigens and the Rh antigen, which is important for blood transfusions and pregnancy compatibility.
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