1) What allows antibodies to easily attack gram + bacteria than gram- bacteria? a) Thick cell wall b) Outer membrane barrier c) Faster movement d) No antigens 2) Which innate immune receptor detects bacterial lipopolysaccharide (LPS)? a) TLR4 b) TCR c) BCR d) MHC I 3) Which process allows innate immune cells to engulf and destroy pathogens? a) Phagocytosis b) Diffusion c) Translation d) Replication

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