17. In SARS-CoV-2's TMPRSS2-mediated entry pathway, what is the function of TMPRSS2?
(A) To block the virus from reaching the host cell surface.
(B) To cleave the spike protein, exposing the fusion peptide.
(C) To facilitate endocytosis of the virus.
(D) To activate ACE2 for viral entry.
(E) To neutralize acidic endosomal conditions.
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統計: A(0), B(0), C(1), D(0), E(0) #3662525
統計: A(0), B(0), C(1), D(0), E(0) #3662525