PG entrance exam CUET PG 2025 Mock Test Life Sciences Cell Communication and Cell Signaling Immune System
The following statements are made about how immune cells recognize and respond to pathogens:
A. Natural Killer (NK) cells detect the presence of pathogens by recognizing pathogen-associated molecular patterns (PAMPs) using their TLR receptors.
B. Neutrophils are recruited to sites of infection by chemokines such as IL-8 and can perform phagocytosis of pathogens.
C. Dendritic cells act as antigen-presenting cells (APCs) and can present antigens to T cells using MHC-I and MHC-II molecules.
D. Macrophages eliminate pathogens by releasing antibodies, which can directly neutralize bacterial toxins and viruses.
Which one of the following options represents the combination of all correct statements?
1
A and C
2
B and D
3
B and C
4
A and D