12 Questions
What is the main basis for classifying medically important gram-negative rods?
Biochemical properties
Where are medically important gram-negative rods commonly found?
In soil, water, and vegetation
What is the relationship between medically important gram-negative rods and intestinal flora?
They are part of the normal intestinal flora of most animals and humans
How many genera are included in the largest collection of medically important gram-negative rods?
More than 50 genera
Which of the following best describes the classification basis for medically important gram-negative rods?
Biochemical properties, antigenic structure, and molecular analysis of genomes
Where are medically important gram-negative rods commonly found?
In soil, water, and vegetation
What is the primary habitat of medically important gram-negative rods?
Soil and water
How many genera are included in the largest collection of medically important gram-negative rods?
More than 50 genera
Which characteristic is used to distinguish Enterobacteriaceae from other gram-negative rods?
Oxidase production
What is a characteristic feature of Plesiomonas that distinguishes it from other members of the family Enterobacteriaceae?
Oxidase positivity
What is a common characteristic of medically important gram-negative rods in terms of their nutritional requirements?
Simple nutritional requirements
Which test is used to distinguish Enterobacteriaceae from many other gram-negative rods?
Oxidase production
Explore the diverse world of medically important gram-negative rods, which encompass over 50 genera and hundreds of species and subspecies. Learn about their ubiquitous presence in the environment and their classification based on biochemical properties, antigenic structure, gene sequencing, and protein composition.
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