While vacationing in a country that lacks adequate meat inspection, a student ate undercooked ground beef. Sometime later the student became easily fatigued, and lost body weight. At about the same time, whitish, flattened, rectangular objects full of small white spheres started appearing in his feces. Administration of niclosamide cured the problem. The student had probably been infected by a

#Question id: 1964

#Unit 4. Cell Communication and Cell Signaling

A bacterium entering the body through a small cut in the skin will do which of the following?

#Question id: 1965

#Unit 4. Cell Communication and Cell Signaling

In some insects, such as Drosophila, fungal cell wall elements can activate the protein Toll. What is Tollʹs function?

#Question id: 1966

#Unit 4. Cell Communication and Cell Signaling

Mammals have Toll-like receptors (TLRs) that act in a manner similar to those of insects. While not specific to a particular pathogen, a TLR can recognize a kind of macromolecule that is absent from vertebrates but present in/on certain groups of pathogens. Which of the following is most likely to be recognized by a particular TLR that defends against some viruses?

#Question id: 1967

#Unit 4. Cell Communication and Cell Signaling

Which of the following is the most likely reason that ancient peoples sought to identify inflammation?

#Question id: 1968

#Unit 4. Cell Communication and Cell Signaling

Septic shock, a systemic response including high fever and low blood pressure, can be life threatening. What causes septic shock?

#Question id: 1969

#Unit 4. Cell Communication and Cell Signaling

A bacterium has elements on its surface that are resistant to lysozyme. If an individual is infected with this bacterium, what is a probable consequence?