Immune System Following are the defenses of the colon except dense resident microbiota sIgA fast flow rate mucus dense resident microbiota sIgA fast flow rate mucus ANSWER DOWNLOAD EXAMIANS APP
Immune System Which is not an antigen-presenting cell (or APC)? Polymorphonuclear leukocyte (or PMN) Dendritic cell B cell All of these Polymorphonuclear leukocyte (or PMN) Dendritic cell B cell All of these ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following expresses CD3 surface antigen? Granulocytes Monocytes B cells T cells Granulocytes Monocytes B cells T cells ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following statements is false regarding B cells? B cells can undergo class switching and produce a different antibody type B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow B one marrow stem cells migrate to the thymus and develop into B cells B cells synthesize antibodies and put them on their cell surface B cells can undergo class switching and produce a different antibody type B cells that recognize high concentrations of antigens (self) in the absence of other signals undergo apoptosis in the bone marrow B one marrow stem cells migrate to the thymus and develop into B cells B cells synthesize antibodies and put them on their cell surface ANSWER DOWNLOAD EXAMIANS APP
Immune System Which of the following proteins would not need localization signal? A protein bound to the endoplasmic reticulum (ER) membrane A cytosolic protein A nuclear protein A cell surface protein A protein bound to the endoplasmic reticulum (ER) membrane A cytosolic protein A nuclear protein A cell surface protein ANSWER DOWNLOAD EXAMIANS APP
Immune System The role of the M cell is to trap virus in mucus and prevent entry they use their cilia to propel mucus out of the small intestine induce apoptosis in virus-infected small intestinal epithelia cells pass bacteria or virus to underlying macrophages for processing and presentation of antigen trap virus in mucus and prevent entry they use their cilia to propel mucus out of the small intestine induce apoptosis in virus-infected small intestinal epithelia cells pass bacteria or virus to underlying macrophages for processing and presentation of antigen ANSWER DOWNLOAD EXAMIANS APP
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