Microcheck


1			What might occur to the blood levels of a medication if another medication interferes with its degradation by the liver?




2			What is the advantage to the body of having pepsin becoming active only after exposure to acid?




3			Why is it that the tongue and cheek epithelium doesn't provide sufficient anaerobic conditions for plaque anaerobes to grow?




4			A sucrose-rich diet is important in tooth decay, but figure 24.4 shows the effect of glucose. Are sucrose and glucose equivalent? Why or why not?




5			Discuss the pros and cons of the statement, "Helicobacter pylori causes stomach cancer."




6			Why would you expect acyclovir to be ineffective against latent herpes simplex viral infections?




7			Why is mumps a good candidate for eradication from the world?




8			How would you devise a selective medium for Vibrio cholerae?




9			Why might it be more difficult to prepare a vaccine against Norwalk viruses than rotaviruses?




10			At what stage in the replication of Hepatitis B would a reverse transcriptase inhibitor act?




11			Explain why individuals with severe giardiasis infection have bulky feces containing fat.




12			Would you expect an individual with giardiasis who has diarrhea to be more likely to transmit the disease than an individual with giardiasis who does not have diarrhea? Explain.