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Question Video: Interpreting Diagrams of Blood Transfusions Biology

Blood can be transfused between individuals. The diagram provided shows which blood group can receive blood from or donate blood to other groups. Which of the following statements is correct? [A] People with blood type AB can receive any other blood type. [B] People with blood type O can only receive blood that is type AB. [C] People with blood type A can only receive blood that is type A. [D] People with blood type B can donate blood to any other person. [E] People with blood type O cannot receive any blood transfusions.

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Video Transcript

Blood can be transfused between individuals. The diagram provided shows which blood group can receive blood from or donate blood to other groups. Which of the following statements is correct? People with blood type AB can receive any other blood type. People with blood type O can only receive blood that is type AB. People with blood type A can only receive blood that is type A. People with blood type B can donate blood to any other person. People with blood type O cannot receive any blood transfusions.

This question is asking us to use the diagram to identify which statements are correct. To answer this question, we will interpret the information in the diagram and use it to identify the correct statements about blood type compatibility. In the diagram, the four blood types found in humans are shown as red circles: type O, type A, type B, and type AB. Each of the blood types has several arrows which shows all of the possible directions for blood donation. Using these arrows, we can interpret the information provided by the diagram.

For example, those with type O blood can only receive donations from those with type O blood as shown by the curved arrow. The arrows pointing away from type O indicate which blood groups accept type O blood donations. This includes those with type A blood, those with type B blood, and those with type AB blood. Since every blood type accepts type O blood donations, people with type O blood are known as universal donors. This means they can give blood donations to any other blood type, including their own.

With this information, we can evaluate the two statements about type O blood. The statement “People with blood type O can only receive blood that is type AB” is incorrect as people with blood type O can only receive blood that is type O. The statement “People with blood type O cannot receive any blood transfusions” is incorrect as they can receive blood type O transfusions.

People who are blood type A can receive blood donations from people who are blood type O, as shown by the straight arrow, as well as people who are blood type A, as shown by the curved arrow. The arrow pointing away from blood type A is to indicate that besides those with blood type A, only those who are blood type AB can accept blood type A donations. With this information, we can evaluate the statements about blood type A. The statement “People with blood type A can only receive blood that is type A” is incorrect. This is because those with blood type A can accept donations from those who are blood type O or blood type A.

People with blood type B can receive blood donations from people who are type O, as shown by the straight arrow, or people who are type B, as shown by the curved arrow. The arrow pointing away from type B is to indicate that the only group besides those with type B blood who accept type B blood donations are those who are blood type AB. With this information, we can evaluate the statements about blood type B. The statement “People with blood type B can donate blood to any other person” is incorrect. People with type B blood can donate to anyone with type B or type AB blood.

Those with blood type AB are known as universal receivers. This is because they can accept blood donations from any other blood type including their own. With this knowledge, we can evaluate the statements about the AB blood type. The statement “People with blood type AB can receive any other blood type” is correct according to our diagram.

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