Which cell type would likely be the first to attack a tumor even though it does not have specific antigen receptors? Multiple Choice natural killer T cell natural killer cell cytotoxic T cell plasma cell

Granzyme and perforin are used by what cell type in the immune system to carry out its function? O 1) TH1 O 2) Neutrophil 3) Cytotoxic T cell O 4) Eosinophil

Which is not applicable to innate immunity? A) O t is faster than adaptive immunity in responding to pathogens B) )Olt can involve toll-like receptors C) O It may use complement to kill pathogens. D) O The inflammatory response is part of innate immunity. E) O It can make one resistant to future infections.

An antigen acts is a molecule that acts like a name tag, allowing the immune system to recognize the cell it is attached to. The name tag might say: "Hello I'm... a deadly virus," or “Hello I'm... a healthy human cell." It is very important that an antigen for a deadly virus and a healthy human cell are very different, so that the immune system does not make a mistake and attack healthy human body cells. Which of the following molecules do you think would make good antigens for recognizing a pathogen? Justify your answer. You may choose more than one. 1) a cell wall protein 2) a piece of DNA inside a cell 3) a protein that is part of a flagella 4) a uniquely shaped protein that is part of a virus 5) a protein that is only made by prokaryotic cells 6) a protein that is only made by eukaryotic cells