Formation of a pseudomembrane in the back of the throat is seen in: 

Prions are ___ (select all)

What is a logical use for Bacitracin?

Which form a plague leads to black purpura along the extremities? 

Explain the steps necessary to create an antibiotic resistant infection?  

Which bacteria causes community acquired walking pneumonia?

Which drug will be most effective against malaria?

Rickettsia riskettsii causes Rocky mountain spotted fever and is acquired by a _____ vector.  

  Before submitting your exam, show your “show your work sheets” to the camera.

Consider the Si electron filling model (a). (1) Describe the similarity to the Lewis diagram you used in “Chopkins”.   (2)  What can you say about the conductivity of pure silicon crystal?