A naïve B cell recognises and binds to a polysaccharide from S.aureus. What is likely to happen next?Group of answer choicesThe B cell will enter into the germinal centre reactionThe B cell will differentiate to a short-lived plasma cellThe B cell begin to express CD40L on the cell surfaceThe B cell will phagocytose the polysaccharide and present it on MHC-II to a T follicular helper cell

The pancreas responds by ____________ (B) and this causes target cells to ____________ (C).

Question 53Assume that a patient who was originally infected with a certain strain of bacteria becomes reinfected with the same strain.  Of the following cell types, which is LEAST likely to produce memory cells during the initial infection that would rapidly respond to the new infection?A.B cellB.Cytotoxic T cellC.Helper T cellD.Neutrophil

Recognition of an extracellular bacteria for phagocytosis:Group of answer choicesIs always via direct interaction between the bacteria and the phagocyteTypically leads to process of the bacterial proteins onto MHC-I moleculesCan be by either direct or indirect interaction between the bacteria and the phagocyteLeads to the release of granzymes that can break down the bacteria

Which of the following bacterial cell surface structures may initiate B cells by T-independent antigens?ANSWERPiliFimbriaeFlagellaCapsules

The antigens also trigger the production of __________ lymphocytes that will 'remember' the antigen and quickly produce the right antibodies if the pathogen enters the body again. What word completes the sentence?