Question

Grafted kidney may be rejected in a patient due to
A. Innate immune response
B. Humoral immune response
C. Cell-mediated immune response
D. Passive immune response

Answer 1

Hint: The body needs to protect itself from any foreign particle from harming it. It will get triggered when it will sense some problems. It can send its soldiers (antibodies) to fight against them.

Complete answer:
The immunity is a defence system in our body to fight the foreign organisms that enter to harm us. This gets activated when it senses some foreign particles in the system.
The defence mechanism sends antibodies to fight with those foreign organisms to make them exit our body system. Immunity can be active or passive. Active immunity is long-lasting and is developed with the encounter with pathogens. Passive immunity develops for a short time in the body to fight pathogens instantly. Any organ when it is transplanted acts as a foreign introduction to the patient’s body. So the patient’s body can readily generate the immune system to attack. There are various specific cells like T lymphocytes, B lymphocytes which can generate a cell-mediated immune response as these cells will fight against the foreign cells.
Option A: Innate immune response: It generates an immediate response to the spread of foreign pathogens. It specifically produces cytokines.
Option B: Humoral immune response: It generates the cascade of the complement system thus produces antibodies naturally.
Option C: Cell-mediated immune response: The body when differentiating between self and non-self cells. Thus the grafted kidney when recognized generates the cell-mediated immunity by T lymphocytes.
Option D: Passive immune response: This is the long term immunity provided against any disease.
So, the answer is the option: Cell-mediated immune response

Note: Immune system is the complex mechanism powered by blood and lymph. We should maintain a good immune system to live long. The immune system includes WBC’s, spleen, thymus, bone marrow, and lymph.