Question

Where within a cell are MHC class I molecules synthesized?

a. cytoplasmic membrane
b. Golgi body
c. endoplasmic reticulum
d. nucleus

Answer 1

MHC class I molecules are synthesized in the endoplasmic reticulum and play a vital role in antigen presentation for immune response.

Step-by-step explanation:

MHC class I molecules are synthesized in the endoplasmic reticulum of a cell. These molecules are integral to the immune system's ability to recognize and defend against intracellular pathogens, such as viruses, which replicate within a host cell. Through a process involving the endoplasmic reticulum, intracellular antigens are processed and loaded onto MHC class I molecules. These complexes are then transported to the surface of the cell in a transport vesicle, where they can present the antigen to T cells and potentially stimulate an immune response.