Microbiology Exam 1 study guide answers Quizzes Answered Correctly!!
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Course
Microbiology
Institution
Microbiology
Microbiology Exam 1 study guide answers Quizzes Answered Correctly!!
What is the definition of microbiology?
is the study of microorganisms and their activities. In addition, it also is the study of small living things.
Microorganisms
are those organisms that are too small to see with the nak...
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Microbiology Exam 1 study guide answers Quizzes
Answered Correctly!!
What is the definition of microbiology?
is the study of microorganisms and their activities. In addition, it also is the study of
small living things.
Microorganisms
are those organisms that are too small to see with the naked eye and include things like
bacteria, fungi, and viruses.
What kinds of organisms do microbiologists study?
Microbiologists study microorganisms. Microbiologists may specialize in the study of
different groups of microorganisms.
The kinds of organisms microbiologists study include:
Bacteria
Fungi
Protists
Viruses
Bacteriology
the study of bacteria often broadly designated as Microbiology
Mycology
the study of fungi
Protozoology
study of protozoa
Virology
study of viruses
What are three properties of all microbial cells?
Metabolism
Growth
Evolution
Evolution
Cells evolve to display new properties. Phylogenetic trees capture evolutionary
relationships.
Growth
Nutrients from the environment are converted into new cell materials to form new cells.
Metabolism
Cells take up nutrients, transform them, and expel wastes.
chemical transformation of nutrients.
the sum of all chemical reactions that occur in a cell.
What are four properties of some microbial cells that we discussed in lecture?
, Differentiation
Communication
Genetic Exchange
Motility
Genetic exchange
Cells can exchange genes by several mechanisms.
Communication
Cells interact with each other by chemical messengers.
Differentiation
Some cells can form new cell structures such as a spore.
Motility
Self-movement
Some cells are capable of self-propulsion.
What is the 3-domain system?
The 3-domain system is a system for classifying biological organisms and they include:
Bacteria (prokaryotic)
Archaea (prokaryotic)
Eukarya (eukaryotic)
Domains:
three distinct lineages of microbial cells
Who is the scientist responsible for developing the 3- domain system?
Carl Woese
Why is this gene useful for developing a phylogenetic tree of life?
Phylogenetic tree: depicts phylogeny (evolutionary history) of all cells
•clearly shows three domains
•Root is LUCA.
•evolution along two paths to form Bacteria and Archaea
•Archaea diverged to distinguish Eukarya.
gene must be present in all organisms
What is the marker gene used to develop the 3- domain system?
rRNA (ribosomal RNA sequencing)
Bacteria cell structure
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