Question 1
Secondary metabolites are often useful, and are obtained by
◦ allowing a culture to enter stationary phase.
◦ harvesting a culture during log phase.
◦ adding chemicals that alter metabolic pathways.
◦ using continuous flow culturing.
◦ growing a culture at sub-optimal temperature.
Question 2
A patient is brought to the emergency room in a comatose state. The family reports he had complained of nausea and a bad headache in the past couple of days. They also report they had engaged in their normal summer activities: picnicking, fishing and swimming at the lake near their home. His fever is high, and while in the ER, he has a seizure. Which of the following is likely to be responsible for his symptoms?
◦
Entamoeba histolytica◦
Gonyaulax◦
Naegleria fowleri◦
Giardia intestinalis◦
Toxoplasma gondii