Questions and Answers
What is a toga?
The bacterial species found associated with the human body are very similar from one individual to another.
False
The phototrophic bacteria do not form a distinct taxonomic group.
True
Although Archaea cannot be classified as gram positive or gram negative, all Bacteria can be classified into one of these two categories.
Signup and view all the answers
Spirochetes are generally easy to culture in the laboratory.
Signup and view all the answers
The deeply branching bacteria contain species that have evolved most recently.
Signup and view all the answers
All the bacteria classified within the genus Bacillus are capable of forming endospores.
Signup and view all the answers
Mycoplasmas are bacteria that lack cell walls.
Signup and view all the answers
Phototrophic bacteria may have carotenoids, which are the red and orange pigments also used as accessory pigments by plants.
Signup and view all the answers
The class Bacilli includes both rod-shaped and spherical bacterial species.
Signup and view all the answers
What is the domain that includes the Crenarchaeota and Euryarchaeota?
Signup and view all the answers
The class that consists of high G+C bacteria is called?
Signup and view all the answers
What are the pigments used by green and purple bacteria for photosynthesis called?
Signup and view all the answers
What source of carbon do purple sulfur bacteria use?
Signup and view all the answers
Variability in cellular shape, as exemplified by mycoplasmas, is described by the term?
Signup and view all the answers
What is the class of Proteobacteria characterized by oligotrophy that includes chlamydias and the rickettsias?
Signup and view all the answers
Organisms that must live within the cells of their hosts are called?
Signup and view all the answers
The Halobacteria are classified within which archaeal phylum?
Signup and view all the answers
What special growth medium is required to culture members of the genus Neisseria?
Signup and view all the answers
The medically important genus Salmonella is classified within which family of the Gammaproteobacteria?
Signup and view all the answers
Study Notes
Toga
- A toga refers to an outer membrane found in a taxon of deeply branching bacteria.
Bacterial Species Variability
- Human-associated bacterial species vary significantly between individuals.
Phototrophic Bacteria Taxonomy
- Phototrophic bacteria do not form a distinct taxonomic group.
Bacterial Classification
- Archaea cannot be categorized as gram positive or gram negative; however, all Bacteria can be classified into these categories.
Spirochetes Cultivation
- Spirochetes are not generally easy to culture in laboratory settings.
Deeply Branching Bacteria Evolution
- Deeply branching bacteria comprise species that have evolved earlier, not more recently.
Bacillus Genus
- Every bacterium classified under the genus Bacillus is capable of forming endospores.
Mycoplasmas Characteristics
- Mycoplasmas are unique bacteria that lack cell walls.
Photosynthetic Pigments
- Phototrophic bacteria may contain carotenoids, which are red and orange pigments, serving as accessory pigments in plants.
Class Bacilli
- The class Bacilli includes bacterial species that are both rod-shaped and spherical.
Archaeal Domains
- The domain "Archaea" encompasses the subclasses Crenarchaeota and Euryarchaeota.
Actinobacteria Class
- The class Actinobacteria comprises high G+C content bacteria.
Photosynthesis Pigments in Bacteria
- Green and purple bacteria utilize bacteriochlorophylls for photosynthesis, which are colored green, purple, or blue.
Carbon Source in Purple Sulfur Bacteria
- Purple sulfur bacteria use carbon dioxide as their carbon source.
Cellular Shape Variability
- The term "pleomorphic" describes variability in cellular shape, as seen in mycoplasmas.
Class of Proteobacteria
- Alphaproteobacteria is a class of Proteobacteria known for oligotrophy and includes chlamydias and rickettsias.
Intracellular Pathogens
- Organisms that must live within host cells are classified as obligate intracellular pathogens.
Halobacteria Classification
- Halobacteria are classified within the archaeal phylum Euryarchaeota.
Neisseria Cultivation
- A special growth medium known as chocolate agar is required to culture members of the genus Neisseria.
Salmonella Classification
- The medically significant genus Salmonella belongs to the Enterobacteriaceae family within the Gammaproteobacteria class.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge with flashcards from Microbiology Chapter 4 (Part 2). This quiz covers key concepts including bacterial taxonomy and characteristics. Perfect for review before exams or to reinforce learning.
