Lecture Exam 3 BIOL 2420

Lecture Exam 3 BIOL 2420 - I i Lecture Exam III Biol.2420...

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I i Lecture Exam III Biol.2420 Spring,2005 1) which of the following describes cold-loving microorganisms? C) thermoPhiles 2) Which of the following is usually incl.yled as an ingredient in the culnrre media in order to maintain a proper pH of the media? D) agar 3) Microorganisms that can glow in the presence or absence of oxygen are known as A) obligate aerobes. 4)Whichofthefollowingisanexampleoffacultativeanaerobe? It) E. coli nj Uacteriat species belong to genus Staphylococcus C) bacterial species belong to genus Streptococcus 5) Which of the following microorganisms is unable to use oxygen for growth and it can *tuaty be harrred by the presence of oxygen? A) E. coli Bi bacterial species belong to genus Staplrylococcus C) bacteriat sPecies belong to 6) Bacteria reproduce or multiply themselves by 7) During which of the following phases of bacterial growth, bacterial cells are undergoing aperiod of intense rn"ittoti" activity involving the synthesis of enzymes and es? B) the log phase C) the stationarY Phase D) the death Phase
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8) The exponential growth phase is also known as A) the lag phase C) the stationary Phase D) the dealh Phaqe 9) Bacterial cells from which of the four phases during bacterial growth that microbiologists prefer to do experiment with? A) the lag phase @1ry C) the stationarY Phase D) the death phase l0) Which of the following phases of bacterial growth is also known as a period of equilibrium (a balance between cell death and new cells formation)? A) the lag phase l1) Plate @unts is a method to directly measure bacterial population as nurnbers of colonies formed on an agar plate. Which of the following is the first step involved in plate counts? an empty
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This note was uploaded on 10/13/2010 for the course BIOL 2420 taught by Professor Turner during the Spring '10 term at Lone Star College System.

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Lecture Exam 3 BIOL 2420 - I i Lecture Exam III Biol.2420...

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