DOC PREVIEW
Missouri S&T BIO SCI 221 - Microbiology Exam 4

This preview shows page 1-2-3 out of 9 pages.

Save
View full document
View full document
Premium Document
Do you want full access? Go Premium and unlock all 9 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 9 pages.
Access to all documents
Download any document
Ad free experience
View full document
Premium Document
Do you want full access? Go Premium and unlock all 9 pages.
Access to all documents
Download any document
Ad free experience
Premium Document
Do you want full access? Go Premium and unlock all 9 pages.
Access to all documents
Download any document
Ad free experience

Unformatted text preview:

Microbiology Exam 4 Name ___________________________Multiple choice. (1 point each) Choose the one best answer to each of the following questions._____ The size of the most useful RNA molecule for prokaryotic evolutionary studies is a) 5Sb) 16Sc) 18Sd) 23S_____ All eukaryotes containa) a membrane bound nucleusb) mitochondriac) hydrogenosomesd) all of the above_____ A habitat containing a methanogen isa) anoxic and reducedb) anoxic but not very reducedc) reduced but not anoxicd) aerobic_____ Although the microsporidia and diplomonads are eukaryotic, they lacka) mitochondriab) a true nucleusc) identifiable ribosomesd) all of the above_____ The most widely used molecular chronometer is a) cytochrome Cb) ATPasec) ribosomal RNAd) heat shock proteins_____ Protein synthesis studies using Sulfolobus (archaea), yeast (eukarya), and Escherichia coli (eubacteria) indicate that the ribosomal proteins of _____ and _____ are more closely related to each other than they are to the ribosomal proteins of _____.a) archaea, eubacteria, eukaryab) archaea, eukarya, eubacteriac) eubacteria, eukarya, archaead) none of the above because the studies indicate these proteins all seem to be similar._____ Why are all methanogens fluorescent under ultraviolet light?a) they have the electron carrier F420b) methane is a fluorescent compoundc) sodium pumped out by the sodium pump gives off blue lightd) the combustion of methane gives off blue light_____ The eukaryotic functional equivalent of the prokaryotic 16S rRNA is the a) 5S rRNAb) 16S rRNA (the same as the prokaryotic 16S rRNA)c) 18S rRNAd) 23S rRNA_____ The difference between cellular and acellular slime molds isa) cellular types form multinucleate spore bearing structuresb) cullular types form haploid amoeboe which fusec) acellular types form sporesd) acellular types form fruiting bodies from one giant multinucleate cell_____ The archaezoan Trychonympha benefits the termite Reticulotermes by production of a) methaneb) hydrogenc) acetated) vitamins_____ Eukaryotes have not acquired chloroplasts without acquiring mitochondria becausea) mitochondria give energy to chloroplastsb) cells without mitochondria are probably oxygen-sensitivec) cells without mitochondria are probably aerobicd) they are anaerobic_____ A gram positive microorganism has the following traits: filamentous, forms spores at the end of mycelia, produces antibiotics, produces geosmin, is nutritionally versatile, yields compact "dusty" colonies on agar culture media. These traits describe the genusa) Streptomycesb) Streptobacillusc) Mycobacteriumd) Lactobacillus_____ Which of the following characterize the Actinomycetes?a) Filamentous growth.b) Conidia on aerial hyphae.c) Common inhabitants of soil.d) All of the above._____ Amoeboflagellates are protozoa witha) a dominant flagellar stageb) a unique mechanism of pseudopod formationc) both amoeba and flagellate stages in the life cycled) with life cycles linke to sexual recombination_____ Enzymes from thermophiles area) used in PCRb) used in laundry detergentsc) cheaper to use because less protein is required for the same amount of activityd) all of the above_____ A thin, crescent-shaped organism with a single flagellum originating from a basal body would most likely be a member of the genusa) Trypanosomab) Glossinac) Entamoebad) Gambiense_____ Which statement best describes the habitats of the fungi?a) Most fungi are aquatic, primarily fresh water aquatic.b) Most fungi are aquatic, primarily marine aquatic.c) Most terrestrial fungi dwell in the soil or on dead plant material.d) Most terrestrial fungi are plant or animal parasites._____ In archaea ether-linked lipids are found ina) methanogensb) halophilesc) sulfur-dependent thermophilesd) all of the abovee) none of the above_____ A predominant mode of catabolism among the anaerobic, extremely thermophilic archaea involvesa) chlorophyll-based photosynthesisb) light-stimulated proton translocation across the membrane via bacteriorhodopsinc) reduction of nitrate d) oxidation of sulfure) reduction of sulfur_____ Which of the following unique cofactors found in methanogenic bacteria does not function as a carbon carrier?a) F420b) methanopterinc) methanofurand) Coenzyme M_____ Group of archaezoan protists that include the disease causing microbie Giardia intestinalis. a) parabasaliansb) amoeboflagellatesc) apicomplexad) diplomonads_____ Which of the following about methanogens is falsea) they contribute to the warming of the planetb) they are all obligate methane producersc) they all have pseudomurein in their cell wallsd) they have unusual coenzymes for methanogenesis_____ Phylogenetic trees based on RNA sequences indicate thata) choanoflagellates are closest to animals originsb) green plants evolved from chlorophyte ancestorsc) amoebae arose from flagellated cellsd) both a and be) all of the above_____ Which algae are probably most closely related to the plants?a) diatomsb) brown algaec) green algaed) euglenoids_____ Kinetoplastids in some protozoansa) aid them in photosynthesisb) aid them in locomotionc) contain nuclear DNAd) contain mitochondrial DNA_____ Plasmodium vivaxa) reproduces sexually in the red blood cellsb) reproduces sexually in the mosquitoc) reproduces sexually in the lived) doe not reproduce sexually_____ From 16S rRNA analysis we have learned thata) Archaea and Bacteria are closely relatedb) photosynthesis evolved in the Archaeac) mitochondria came from the Archaead) the prokaryotes constitute one fo the three kingdoms or domains of lifee) the prokaryotes constitute two of the three kingdoms or domains of life_____ Giardia can be transmitted bya) live protozoa in diarrheab) drinking sources contaminated with cystsc) fluid replacementd) all of the above_____ The cytoskeleton in eukaryotic cells may be used toa) maintain cell shapeb) move materials around inside a cellc) capture preyd) all of the above_____ Molecular sequencing suggests that mitochondria arose from a group of prokaryotic organisms that includes the a) Agrobacterium and Rhizobiumb) Vibrio and Photobacteriumc) Aquifexd) Escherichia and Salmonella_____ All members of the genus Bacillus are known for ___.a) their ability to break down sulfur-containing compounds.b) their ability to form endosporesc) their ability to live in the absence of oxygend) the capsules they posses_____ Euglenoids


View Full Document

Missouri S&T BIO SCI 221 - Microbiology Exam 4

Download Microbiology Exam 4
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view Microbiology Exam 4 and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Microbiology Exam 4 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?