The document discusses blood type antigens and antibodies. It provides an interactive learning activity with questions about which blood types possess A and B antigens on red blood cells and which types have A and B antibodies in plasma. The activity tests the understanding that type A blood has B antibodies, type B blood has A antibodies, type AB blood has no antibodies, and type O blood has both A and B antibodies. Correct answers are provided with explanations to help learn about blood type compatibility for transfusions.

1. Antigens and
Antibodies
of Blood Type
The purpose of this activity is to provide
practice with determining antigens and
antibodies

2. Watch the following video to learn the basics:
Return
to the
start.
Test your
knowledge after
you watch the
video.

3. Let’s test your
understanding of the basics.
• Read each question and click on the correct
answer.
• Continue to practice until you can answer the
questions with ease.
• Watch the video again if you need more
information.
Watch Return
the video to the
again start.

4. First let’s review the
antigens
• Antigens are like
identifiers on the
surface of the red
blood cells.
Return
to the
start.

5. What kind of antigen does
A-type blood possess?
• Only A-type
• Only B-type
• A and B-type
• none
Return
to the
start.

6. CORRECT!
• A-type blood has A-
type antigens
Next question
Return
to the
start.

7. What kind of antigen does
B-type blood possess?
• Only A-type
• Only B-type
• A and B-type
• none
Return
to the
start.

8. CORRECT!
• B-type blood has B-
type antigens
Next question
Return
to the
start.

9. What kind of antigen does
AB-type blood possess?
• Only A-type
• Only B-type
• A and B-type
• none
Return
to the
start.

10. CORRECT!
• AB-type blood has both
A and B-type antigens
Next question
Return
to the
start.

11. What kind of antigens does
O-type blood possess?
• Only A-type
• Only B-type
• A and B-type
• none
Return
to the
start.

12. CORRECT!
• O-type blood has
neither A nor B antigens
Next question
Return
to the
start.

13. Now let’s think about the
antibodies
• Antibodies help to
protect the blood.
• They float around in the
plasma surrounding the
red blood cells.
• They are experts at
finding incompatible
cells and destroying
them.
Next question
Return
to the
start.

14. What types of antibodies
does A-type blood possess?
• Only A-type antibodies
• Only B-type antibodies
• A and B-type antibodies
• No A or B type antibodies
Return
to the
start.

15. CORRECT!
• A-type blood has B-type
antibodies
• If a person with A type
blood was transfused
with some B-type blood,
the B-type antibodies
would attack those B-
type blood cells
Next question
Return
to the
start.

16. What types of antibodies
does B-type blood possess?
• Only A-type antibodies
• Only B-type antibodies
• A and B-type antibodies
• No A or B type antibodies
Return
to the
start.

17. CORRECT!
• B-type blood has A-
type antibodies
• If a person with B type
blood was transfused
with some A-type
blood, the A-type Next question
antibodies would
attack those A-type
blood cells
Return
to the
start.

18. What types of antibodies
does AB-type blood possess?
• Only A-type antibodies
• Only B-type antibodies
• A and B-type antibodies
• No A or B type antibodies
Return
to the
start.

19. CORRECT!
• AB-type blood has no A or B
type antibodies
• If a person with AB type
blood was transfused with
some A or B-type blood,
there wouldn’t be any
reaction! They are a Next question
universal recipient for many
types of blood.
Return
to the
start.

20. What types of antibodies
does O-type blood possess?
• Only A-type antibodies
• Only B-type antibodies
• A and B-type antibodies
• No A or B type antibodies
Return
to the
start.

21. CORRECT!
• O-type blood has BOTH A and
B-type antibodies
• If a person with O type blood
was transfused with some A or
B-type blood, their A and B- Next question
type antibodies would attack
those foreign blood cells
Return
to the
start.

22. Let’s pretend we have a lot of B-type
blood on hand. Who could receive a
transfusion of this type of blood?
• A person with • A person
AB-type blood with A-type
blood
• A person with B- • A person with
type blood O-type blood
Return
Do you
to the
need a
review?
start.

23. You’re the right type!
• Having completed this activity, you should now
have an understanding of how antigens and
antibodies relate to blood type.
Return
to the
start.

24. Return to the last question.

25. Let’s try that one again.
Return to the last question.
Watch Return
the video to the
again start.

26. That’s right!
• This blood type does not have Anti-B antibodies, so
there would be no transfusion reaction.

27. Unfortunately that’s not
right.
This type of blood
has anti-B antibodies,
so there would be a
transfusion reaction.