Connect - Evolution And History Of Microbiology

The three domain system, comprising the bacteria, the _________, and the archaea, was devised in the 1970s by Carl Woese.

Differentiate between the types of microorganisms studied by microbiologists. -An organism characterized by having cells containing DNA in a membrane-bound organelle -An organism characterized by having a cell lacking a membrane-bound nucleus -An infectious agent consisting of only protein -An infectious agent consisting of only RNA -An infectious agent made up of protein, nucleic acids and sometimes a lipid membrane Word Bank: Viroid, Virus, Prokaryote, Prion, Eukaryote

Carl Woese distinguished between the members of the Archaea and the Bacteria using studies of their ________. A. ribosomal RNA B. messenger RNA C. DNA D. transfer RNA

A microbe is discovered living in an extreme environment near a deep sea vent. The microorganism lacks a nucleus and peptidoglycan in its cell wall, but it does have unusual membrane lipids. This species is most likely a member of the Domain ________. A. Eukarya B. Bacteria C. Archaea D. Animalia

To determine the relatedness of a new species of microbe to other species, genes that encode small subunit ____ molecules are compared to determine the number of differences in the sequence. A. DNA B. RNA C. proteins D. lipids

Choose the correct scientific name for a microbial species. A. Staphylococcus aureus (both italicized) B. Streptococcus Pyogenes (both italicized) C. klebsiella (italicized) Pneumoniae (not italicized) D. Escherichia Coli (not italicized)

Complete each sentence about disproving the theory of spontaneous generation. -In ancient times, people believed in the theory of ___, which stated that ___ organisms could develop from ___ matter. -Testing this theory, a series of experiments carried out on rotting meat by ___ showed that maggots did not arise if flies did not contact the meat. -However, more evidence supporting the theory was then generated by___, who showed that some tightly stoppered flasks of boiled broth underwent microbial spoilage. -A few years after Needham, ___ improved on this experiment by sealing the broth flasks before boiling, and he found that no spoilage occurred. -Supporters of the theory then hypothesized that sealed flasks did not allow the vital force to enter, so ___ allowed superheated air to enter boiled flasks of broth, and still no spoilage occurred. -Final evidence against the theory came when ___ used open swan-neck flasks of boiled broth and found that although open to the air, microbial spoilage still did not occur. Word Bank: Theodore Schwann, Robert Koch, living, nonliving, germ theory, Lazzaro Spallanzani, spontaneous generation, John Needham, Francesco Redi, John Tyndall, Girolamo Fracastoro, Anthony van Leeuwenhoek, Louis Pasteur

Label the diagram outlining the steps involved in following Koch's postulates. (See image in Answer)

The first of Koch's postulates is A. animals infected with the isolated microorganism must develop the same disease. B. the same microorganisms must be isolated from the diseased animal host. C. the suspected microorganisms must be isolated and grown in a pure culture. D. the microorganism must be present in every case of the disease but absent from healthy organisms.

Determining the DNA sequence of a microorganism's chromosome is the first step in the process of _________ analysis, a promising new field in microbiology.

The scientific discipline known as _____________ involves using computers to analyze the genetic information obtained by molecular biologists in order to identify potential protein-coding genes, determine what they code for, and identify other regions of the genome that may have other important functions. A. bioremediation B. bioinformatics C. immunology D. molecularization

Which of the following experiments is used to identify new pathogens? A. Stanley Miller experiment B. Endosymbiotic theory C. Koch postulates D. Pasteur's swan-neck experiment

Check all of the following that showcases how microbes can be used by people. A. Production of breads B. Production of cheeses C. Production of antibiotics D. Production of vitamins E. Production of enzymes used for many different industrial applications

Which of the following advances best describes that today we may be experiencing a second golden age of microbiology? A. Light microscopy B. Koch postulates C. Genomic testing D. Biochemical testing