Microbiology, A Systems Approach, Ch. 7

Microbiology, A Systems Approach, Ch. 7 Active Transport - correct answers-Protein carrier -ENERGY IS REQUIRED -Movement against gradient Aerobe - correct answersaerobic organism can use gaseous oxygen in its metabolism and possess the enzymes needed to process toxic oxygen products Aerotolerant Anaerobe - correct answersDo not utilize oxygen but can survive and grow to a limited extent in its presence Anaerobe - correct answersLacks the metabolic enzyme systems for using oxygen in respiration Autotroph (Carbon Source) - correct answers-"Self-feeder" -Uses inorganic CO2 as its carbon source (NOT nutritionally dependent on other living things) Binary Fission - correct answersthe division of a bacterial cell occurs mainly through "this" Bioflims - correct answers-Estimated to contribute 80% of chronic infections -Resistant to most antibiotics: ordinary antibiotic treatment, does not work against most biofilms -Mixed communities of organisms Bioflims - correct answers-Quorum sensing: bacteria use this to interact with other members of the same species as well as members of other species that are close by-- ex: Dental plaque, plaque on heart valve (endocarditis) Carbon - correct answersCO2 in air; CO3 2- in rocks & sediments Chemotroph (Energy Source) - correct answersUse organic molecules Commensalism - correct answersthe member called the commernsal receives benefits, while the partner is neither harmed nor benefited (like many bacteria in our gut) Death Phase - correct answers-Cells begin to die at an exponential rate, and they are unable to multiply -- **some death, some remain viable Diffusion - correct answers-Movement of molecules from an area of higher concentration to an area of lower concentration. -Will eventually evenly distribute the molecules... Ectoparasites - correct answersParasites that live on t