TEST BANK microbiology a systems approach cowan 3e chapter007

Chapter 007 Elements of Microbial Nutrition Ecology and Growth Multiple Choice Questions Microorganisms require large quantities of this nutrient for use in cell structure and metabolism A Eleme nt B Macronutrie nt C Wate r D Growth factor E Trace element Microorganisms require small quantities of this nutrient for enzyme function and maintenance of protein structure A Eleme nt B Macronutrie nt C Wate r D Growth factors E Trace element What compound has the highest concentration in a cell? A CO2 B CH C H2 O D Glucos e E NH Most of the dry weight of a microbial cell is from A Inorganic compounds B Mineral s C Wate r D Organic compounds E Salt s Which of the following is not a major element of a microbial cell? A Coppe r B Carbo n C Hydroge n D Nitroge n E Oxyge n An organic nutrient that cannot be synthesized by the organism and must be provided is called a/an A Eleme nt B Macronutrie nt C Wate r D Growth factor E Trace element An important mineral ion of the cytochrome pigments of cellular respiration is A Iro n B Zin c C Calciu m D Magnesiu m E Potassiu m An important mineral ion that is a component of chloroplasts and stabilizer of membranes and ribosomes is A Iro n B Zin c C Calciu m D Magnesiu m E Potassiu m The term autotroph refers to an organism that: A Uses CO2 for its carbon source B Must obtain organic compounds for its carbon needs C Gets energy from sunlight D Gets energy by oxidizing chemical compounds E Does not need a carbon source 10 The term heterotroph refers to an organism that A Uses CO2 for its carbon source B Must obtain organic compounds for its carbon needs C Gets energy from sunlight D Gets energy by oxidizing chemical compounds E Does not need a carbon source 11 Calcium is required for bacteria because A It stabilizes the cell wall B It stabilizes the ribosomes C It stabilizes the nucleoid D It maintains cellular pH E It makes strong bones 12 Growth factors A Are inorganic B Are synthesized by organism C Contain elemental oxygen D Cannot be synthesized by the organism E All of the choices are correct 13 An organism that uses CO2 for its carbon needs would be called a/an A Heterotro ph B Photoautotro ph C Chemoheterotro ph D Saprob e E Halotrop h 14 The term phototroph refers to an organism that A Uses CO2 for its carbon source B Must obtain organic compounds for its carbon needs C Gets energy from sunlight D Gets energy by oxidizing chemical compounds E Does not need a carbon source 15 The term chemotroph refers to an organism that A Uses CO2 for its carbon source B Must obtain organic compounds for its carbon needs C Gets energy from sunlight D Gets energy by oxidizing chemical compounds E Does not need a carbon source 16 The methanogens, producers of methane gas, require environments that A Have sunlight B Are very acidic C Have abundant oxygen and CO2 D Are extremely cold E Are anaerobic with hydrogen gas and CO2 17 Organisms that feed on dead organisms for nutrients are called A Saprobe s B Parasite s C Autotrop hs D Lithoautotrop hs E Phototrop hs 18 The type of photosynthesis that does not produce oxygen A Occurs in cyanobacteria B Does not require CO2 as a reactant C Occurs in purple and green sulfur bacteria D Does not require sunlight E Occurs in algae and plants 19 Archea as a group are not pathogens This is because A They evolved without mammals B Mammals evolved special defenses against them C Mammalian hosts not meet their environmental requirements D They are out competed by natural flora E None of the choices are correct 20 Aerobic respiration is an example of A Photosynthes is B Methanoheterop hy C Photoheterotrop hy D Chemoheterotrop hy E Photo autotrophy 21 Microorganisms that live in severe habitats, such as very hot, acidic or salty environments, are called A Thermophil es B Halophil es C Psychrophil es D Extremophil es E Barophil es 22 Organisms called _ live on or in the body of a host and cause some degree of harm A Mesophile s B Thermophil es C Commensa ls D Pathogen s E Halophil es 23 The term obligate refers to A The ability to exist in a wide range of conditions B Existing in a very narrow niche C Using chemicals for energy production D Using light for energy production E Using oxygen for metabolism 24 The term facultative refers to A The ability to exist in a wide range of conditions B Existing in a very narrow niche C Using chemicals for energy production D Using light for energy production E Using oxygen for metabolism 25 The movement of molecules from an area of high concentration to an area of lower concentration is called A Facilitated diffusion B Diffusio n C Active transport D Osmosi s E Endocytos is 26 Diffusion of water through a semi permeable membrane is called A Facilitated diffusion B Diffusio n C Active transport D Osmosi s E Endocytos is 27 The movement of substances from lower to higher concentration across a semi permeable membrane that must have a specific protein carrier and cell expenditure of energy is called A Facilitated diffusion B Diffusio n C Active transport D Osmosi s E Endocytos is 28 The movement of substances from higher to lower concentration across a semi permeable membrane that must have a specific protein carrier but no energy expenditure is called A Facilitated diffusion B Diffusio n C Active transport D Osmosi s E Endocytos is 29 The use of energy by a cell to enclose a substance in its membrane by forming a vacuole and engulfing it is called A Facilitated diffusion B Diffusio n C Active transport D Osmosi s E Endocytos is 30 Bacteria living in a freshwater stream that are moved to salty seawater would A Be in a hypotonic solution B Gain water C Be in a isotonic solution D Shriv el E None of the choices are correct 03 Co ns tr uc tf ou rd iff er en tt er m st td es cri be an or ga nis m' ss ou rc es of ca rb on an d en er gy Le ar ni ng Ob je cti ve :0 04 De fin e sa pr ob e an d pa sit e Le ar ni ng Ob je cti ve :0 05 Di sc us s di ffu sio n an d os m osi s Le ar ni ng Ob je cti ve :0 06 Id en tif yt he eff ec ts on a ce ll of iso to ni c Le 12 ar ni ng Ob je cti ve :0 07 Na m e 2t yp es of pa ssi ve tra ns po rt an d 3t yp es of ac tiv et ns po rt Le ar ni ng Ob je cti ve :0 08 Na m e 5t yp es of ba ct eri a ba se d on th eir te m pe rat ur e pr ef er en ce s Le 14 ar ni ng Ob je cti ve :0 09 Ex pl n ho w di ffe re nt or ga nis m s de al wi th ox yg en Le ar ni ng Ob je cti ve :0 10 Na m e ot he rp hy sic al fa ct or st t mi cr ob es m us tc on te nd wi th Le ar ni ng Ob je cti ve :0 10 Na m e ot he rp hy sic al fa ct or st t mi cr ob es m us tc on te nd wi th Le ar ni ng ob je cti ve :0 08 Na m e 5t yp es of ba ct eri a ba se d on th eir te m pe rat ur e pr ef er en ce s Le ar ni ng Ob je cti ve :0 10 Na m et hr ee ot he rp hy sic al fa ct or st t mi cr ob es m us tc on te nd wi th Le ar ni ng Ob je cti ve :0 11 Lis ta nd de sc rib et he 5t yp es of as so ci ati on s mi cr ob es ca n ve wi th th eir ho st s Le ar ni ng Ob je cti ve :0 11 Lis ta nd de sc rib et he 5t yp es of as so ci ati on s mi cr ob es ca n ve wi th th eir ho st s Le ar ni ng Ob je cti ve :0 12 Di sc us sc ct eri sti cs of bi ofi lm st td iff er en tia te th e m fro m pl an kt on ic ba ct eri a Le ar ni ng Ob je cti ve :0 13 De sc rib et he m aj or wa yt tb ac ter ia di vi de ;n a m e an ot he r wa y us ed by fe we rb ac ter ia Le ar ni ng Ob je cti ve :0 14 De fin e ub lin gt im e an d ho wi tr el at es to ex po ne nti al gr ow th Le ar ni ng Ob je cti ve :0 14 De fin e ub lin gt im e an d ho wi tr el at es to ex po ne nti al gr ow th Le ar ni ng ob je cti ve :0 15 Co m pa re an d co nt st th e ph as es of gr ow th in a ba ct eri al gr ow th cu rv e Le ar ni ng Ob je cti ve :0 15 Co m pa re an d co nt st th e ph as es of gr ow th in a ba ct eri al gr ow th cu rv e Le ar ni ng Ob je cti ve :0 15 Co m pa re an d co nt st th ef ou rp se s of gr ow th in a ba ct eri al gr ow th cu rv e Le ar ni ng Ob je cti ve :0 16 Id en tif y m et ho ds be si de s a gr ow th cu rv et o co un tb ac ter ia Le ar ni ng Ob je cti ve :0 16 Id en tif yt hr ee m et ho ds be si de s a gr ow th cu rv et o co un tb ac ter ia Le ar ni ng Ob je cti ve :7 De sc rib et he m aj or wa yt tb ac ter ia di vi de ;n a m e an ot he r wa y us ed by fe we rb ac ter ia Le ar ni ng Ob je cti ve :a nd hy pe rto ni cc on dit io ns Le ar ni ng Ob je cti ve :h yp ot on ic Le ar ni ng Ob je cti ve :h yp ot on ic an d hy pe rto ni cc on dit io ns ... Obligate anaerobe 52 An organism that cannot tolerate an oxygen environment is a/ an A Aerob e B Obligate aerobe C Facultative anaerobe D Microaerophi le E Obligate anaerobe 53 An organism that cannot... Microaerophi le E Obligate anaerobe 51 An organism that can exist in both oxygen and oxygen less environments is a/ an A Aerob e B Obligate aerobe C Facultative anaerobe D Microaerophi le E Obligate... dismutase and oxidase 50 An organism that can use gaseous oxygen in metabolism and has the enzymes to process toxic oxygen products is a/ an A Aerob e B Obligate aerobe C Facultative anaerobe