Organ transplant patients are given drugs to minimise the rejection of transplanted organs - HSC - SSCE Biology - Question 14 - 2006 - Paper 1
Question 14
Organ transplant patients are given drugs to minimise the rejection of transplanted organs.
How do these drugs work?
(A) They inhibit the production of enzymes by ... show full transcript
Worked Solution & Example Answer:Organ transplant patients are given drugs to minimise the rejection of transplanted organs - HSC - SSCE Biology - Question 14 - 2006 - Paper 1
Step 1
A) They inhibit the production of enzymes by the transplanted organ that leads to its rejection.
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Answer
This statement is incorrect. The drugs given to transplant patients do not work by inhibiting enzymes from the transplanted organ; hence it does not contribute to preventing rejection.
Step 2
B) They suppress the immune response which recognises 'foreign' molecules on the transplanted organs.
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Answer
This statement is correct. The primary function of immunosuppressive drugs is to reduce the immune system's response so that it does not attack the transplanted organ, recognizing it as a 'foreign' entity.
Step 3
C) They act as antibiotics so that bacteria are killed before causing infections in transplanted organs.
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Answer
This statement is incorrect. While antibiotics may be used to prevent infections, they are not the primary mechanism by which drugs minimize rejection of transplanted organs.
Step 4
D) They promote the repair of the blood vessel connections between the transplanted organ and the host body.
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This statement is also incorrect. While vascular connections are essential, the immunosuppressive drugs mainly work through immune suppression rather than promoting vascular repair.
