Micro Final Exam Portage Learning Questions And Answers

Identify what type of electron microscope was used to capture the following image and explain your choice (A). {Ans: Transmission Electron Microscope (TEM) This shows a 2D image of the internal structure, which is only shown by TEM.}What small (~30nm) single-stranded, non-enveloped RNA virus targets the CNS (central nervous system), causing potentially catastrophic damage to motor neurons? {Ans: Polio (poliomyelitis)}Which of the following are considered Protista? Select all that apply. Amoeba Algae Yeast Bacteria {Ans: Amoeba & Algae}True or False. To restrict the growth of a pathogenic microbe a researcher might decrease an incubator from 37°C to 25°C. {Ans: True}True or False. The purpose of a quadrant streak is to produce individual colonies of a bacterial population. {Ans: True}True or False: If you wish to study the motility of an organism you cannot heat fix, but you can chemically fix the specimen. {Ans: False both heat and chemical will kill the cell}True or False. There are currently no cures for tetanus. {Ans: True}The alpha-toxin perfringolysin is associated with which medical condition caused by Gram-positive anaerobic bacteria? Gas gangrene Tetanus Leprosy Botulism {Ans: Gas gangrene}True or False. Only directly ingesting the pre-formed clostridium