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A. A phase in the growth curve during which there is no increase in cell number of a microbial population is called ____________. phase
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B. Most microorganisms cannot be seen without ___________
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C. In food preparation, microbes are reduced to acceptable levels using methods such as addition of vinegar and ___________
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D. __________ is the simplest virus.
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E. Cell division in Saccharomyces cerevisiae occur by _________
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F. Alcoholic fermentation was found to be catalyzed by: __________
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G. Which of the following is not a characteristic of the mycobacterium?
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H. __________ is used to disinfect effluents from sewage treatment.
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I. The class of microorganisms that has growth optima around 20 ۫C to 45 ۫C is __________
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J. ___________ was awarded the 1905 nobel prize for physiology or medicine.
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K. ___________ are the most plentiful form of plankton in the Arctic.
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L. Based on the source of energy bacteria can be classified as phototrophs and _________
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M. Beijerinck and __________ pioneered the use of enrichment cultures and selective media.
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N. Heat – sensitive liquids and gases are sterilized by the use of ___________ method
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O. The most commonly used differential staining procedure is: __________
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P. A microscope in which the magnified image formed by the objective lens is further enlarged by one or more additional lenses is known as: __________
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Q. Which of the following genera of bacteria are aerobes or facultative anaerobes that from irregular clusters by dividing into two or more planes?
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R. Which of the following groups of bacteria is not with unusual properties?
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S. The formation of diphtheria tetanus antitoxins was induced by: ___________
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T. Who supported the theory of spontaneous generation?
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U. The microscope used to study microbial motility and determining the shape of line cells is: __________
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V. ______________ is used for food preservation.
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W. Which of the following disinfectants is used in food industries?
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X. The vegetative structure of a fungus is called a __________
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Y. Spoilage of meat and / or vegetables in cold syorage can be caused by some _________
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Z. The first person to publish an extensive, accurate observation of microorganisms was ___________
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AA. Which of the following is not placed in any microorganism’s domain?
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AB. Gram stain was developed in the year _________
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AC. The most commonly used differential staining procedure is: ____________
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AD. Mutation can involve the ____of nucleotides. I. division , II. addition, III. deletion
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AE. The acid used as a pharmaceutical to supply calcium to the body is: _________
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AF. The Basidiomycota are known a _________ fungi.
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AG. Human insulin and human growth hormone are produced by __________bacteria.
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AH. A system of surgery designed to prevent microorganisms from entering wounds was developed by __________
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AI. Simple acellular entities that can only reproduce within living cells are called _________
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AJ. One of these is not an agricultural activity of microorganisms:
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AK. Which of the following classes of microorganisms has growth optima around 20 ۫C to 45 ۫C?
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AL. ___________ coined the term cell.
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AM. The vaccine for the disease anthrax was developed between the period:
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AN. ____________are large thick walled spores formed when the tips of two sexually compatible hyphae fuse together.
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AO. Which of the following statements best describe transduction?
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AP. The acid used as a pharmaceutical to supply calcium to the body is: __________
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AQ. Alcoholic fermentation was found to be catalyzed by __________
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AR. The process by which the internal and external structures of cells and microorganisms are preserved and fixed in a position is known as: _________
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AS. Bacteria were first discovered in the year __________
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AT. The union of a special male structure called a spermatium with a female reproductive structure is called ___________
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AU. Another name for phenol is _________
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AV. A form of asexual reproduction process in which a single cell divides into two cells after developing a transverse septum is called ___________
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AW. A regular polyhedron with twenty equilateral triangle faces and twelve vertices is known as __________
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AX. A microscope in which the magnified image formed by the objective lens is further enlarged by one or more additional lenses is known as: ___________
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AY. Systematic classification of fungi is based on sequence analtses of _________ RNA.
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AZ. Which one of the following is not an agricultural activity of microorganisms?
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BA. The microscope used in the examination of unstained organisms suspended in fields is called ________ microscope.
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