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SCI250
Microbio Midterm
| Question | Answer |
|---|---|
| Name the organism used to produce cheese. a.) Priopionibacterium Shermanii b.) Acetobacter aceti c.) Giardia d.) Fusobacterium | PROPRIONIBACTERIUM SHERMANII |
| What type of microsco is used to examine structures down to the atomic level? A.) Scanning electron microscope b.) Scanning probe microscope c.) Atomic force microscopes d.) Transmission electron microscope | SCANNING PROBE MICROSCOPE |
| Who created the original system of nomenclature | LINNAEUS |
| What site in the body does not have normal flora? | BLOOD |
| Fossils of prokaryotes go back (blank) billion years | 3.5 to 4.0 |
| The unit of molecules (monomers) of carbohydrates are | AMINO ACIDS |
| The formation of polymers from simpler substances is referred to as (blank) | POLYMERIZATION |
| A chemical bond in which electrons are equally shared is a(n) | NONPOLAR COVALENT BOND |
| Protons are | PART OF THE ATOMIC NUCLEUS |
| The smallest units of matter are | ATOMS |
| Bacteria that have flagella that are distributed over the general cell surface are referred to as | PERITRICHOUS |
| Which of the following is an active transport mechanism? a.) Osmosis b.) Facilitated diffusion c.) Filtration d.) Pinocytosis | PINOCYTOSIS |
| Name the amino acid that is also referred to as the "start" codon. | METHIONINE |
| Matrix formed outside the plasma membrane is referred to as? | GLYCOCALYX |
| Chemically, most enzymes are | PROTEINS |
| The transfer of genetic material during direct cell-to-cell contact is called (blank). | CONJUGATION |
| Enzymatic reactions that can be expressed in which of the following chemical notations? | E+S=P |
| The net gain of ATP molecules after the breakdown of one glucose molecule in glycolysis is | 2 |
| Nonchromosomal DNA molecules found in a bacterial cell are | PLASMIDS |
| The main functions of spores in eukaryotic cells is (blank). | PROPAGATION |
| A fully assembled virus is called a? | VIRION |
| The most common viruses causing respiratory illness belong to | ADENOVIRIDAE |
| The suffic -virales is given to the following terms within the taxon | ORDER |
| The correct hierarchial order for virus classsification is | ORDER, GENUS, FAMILY, SUBFAMILY, SPECIES |
| Viruses can infect | ALL ORGANISMS |
| Viral capsomeres are composed of subunits called | NUCLEOIDS |
| Picornaviridae are (blank) viruses | NONENVELOPED ssRNA |
| RNA viruses belong to which of the following types according to the Baltimore classification system? | III, IV, V |
| Which parts of a virus aid in the attachment to the host cell membrane receptors? | SPIKES |
| The unique cell organelle foudn in the Archaezoa and that appears to be a remnant of mitochondria is called a (blank). | MITOSOME |
| Which of the following are technically not microorganisms? a.) Molds b.) Protozoans c.) Helminths d.) Viruses | VIRUSES |
| Which of the following is commonly referred to as a pinworm? a.) Enterobius vermicularis b.) Necator americanus c.) Ascaris lumbricoides d.) Ancylostoma duodenale | ENTEROBIUS VERMICULARIS |
| The study of fungi is called? | MYCOLOGY |
| Food irradiation destroys the (blank) of the cell wall? REF: p. 150 | DNA |
| The time in minutes in which 90% of the bacterial population will be killed at a given temperature is called the? a.) Generation time b.) Thermal death time c.) Sterilization time d.) Decimal reduction time. REF: P. 141 | DECIMAL REDUCTION TIME |
| A toxic, odorless gas often used as a sterilizing agent in hospitals and dental offices is. REF: p. 148 | ethylene oxid |
| High salt or suger content/concentrations make us of (blank) to destroy or inhibit the growth of microorganisms. REF: p. 143 | OSMOTIC PRESSURE |
| Bacteria that thrive in extremely dry conditions are classified as (blank). REF: p. 143 | XEROPHILES |
| Which of the following microorganisms can be cultured only in the footpads of mice or a species of armadillo? REF: p. 158 | MYCOBACTERIUM LEPRAE |
| Which of the following genera of bacteria need very specialized media for culturing? REF: p. 157 | SPIROPLASMA |
| An inanimate object or substance capable of transporting pathogens from one medium or individuals to another is referred to as a? REF: p. 154 | FOMITE |
| Which of the following stains is the most widely used differential stain in hematology labs? REF: p. 162 | WRIGHT'S STAIN |
| In correct sequence, the five "I's" in microbiology stand for? | INOCULATION INCUBATION ISOLATION INSPECTION IDENTIFICATION REF: p. 156 |