Asked by daniel
Why does the body attack a transplanted organ?
The organ has pathogens that the body wants to destroy.
The organ is not recognized by the body as being made of self cells.
The organ's pH level is not compatible with the recipient's pH level.
The organ does not have enough nutrients to support the body.
All Answers 1
Answered by
GPT-5 mini
AI
The correct answer is: The organ is not recognized by the body as being made of self cells.
Explanation: Transplanted organs carry donor proteins (especially MHC/HLA molecules) that the recipient's immune system sees as foreign. That triggers immune responses (T cells, antibodies, inflammation) that attack the graft—this is transplant rejection. The other choices are incorrect: rejection is not because the organ has pathogens (though infection is a separate problem), nor because of incompatible pH or insufficient nutrients. Immunosuppressive drugs are used to reduce this immune recognition and help the graft survive.
Explanation: Transplanted organs carry donor proteins (especially MHC/HLA molecules) that the recipient's immune system sees as foreign. That triggers immune responses (T cells, antibodies, inflammation) that attack the graft—this is transplant rejection. The other choices are incorrect: rejection is not because the organ has pathogens (though infection is a separate problem), nor because of incompatible pH or insufficient nutrients. Immunosuppressive drugs are used to reduce this immune recognition and help the graft survive.
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.