Pathogenic Gram-Negative Bacilli Overview
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Questions and Answers

Which group of bacteria are rapidly ferment lactose and may be opportunistic pathogens?

  • Coliforms (correct)
  • True pathogens
  • Noncoliform opportunists
  • Facultatively anaerobic bacilli

Where are coliforms commonly found?

  • In soil, on plants, and on decaying vegetation (correct)
  • In the human circulatory system
  • In the human respiratory tract
  • In freshwater bodies only

Which genus includes the most common and important coliform, often used in identifying particular strains with O, H, K antigens?

  • Serratia
  • Escherichia (correct)
  • Enterobacter
  • Klebsiella

What do virulent strains of Escherichia coli possess?

<p>Virulence plasmids with genes for fimbriae, adhesins, exotoxins (B)</p> Signup and view all the answers

What does the presence of coliforms in water indicate?

<p>Impure water and poor sewage treatment (A)</p> Signup and view all the answers

What is the main output path from the cerebellar cortex?

<p>Purkinje neurons (A)</p> Signup and view all the answers

Which cells receive ipsilateral inputs from most structures in the brainstem and contralateral inputs from the cortex?

<p>Granule cells (D)</p> Signup and view all the answers

What type of neurons contact the dendrites of several granule cells and favor coordinated activity in the granular layer?

<p>Golgi interneurons (B)</p> Signup and view all the answers

Which cells have an enormous spread of dendritic ramifications that extends in the molecular layer on a plane perpendicular to the parallel fibres?

<p>Purkinje neurons (B)</p> Signup and view all the answers

Where do the axons of granule cells split in a T shape, generating parallel fibres?

<p>Molecular layer (B)</p> Signup and view all the answers

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