BIOL 241 Midterm Actual study
Questions and correct/verified Answers
microbial ecology - ANSW-study of interrelationships btw microorganisms and environment
ecosystem - ANSW-community of organisms and their natural environment
population - ANSW-group of organisms in same place @ same time
guild - ANSW-metabolically similar populations that exploit similar resources in the same way
facultative aerobes - ANSW-use aerobic systems but prefer anaerobic systems
psychophiles - ANSW-extreme cold
thermophiles - ANSW-heat
hyperthermophiles - ANSW-extreme heat
halophiles - ANSW-love salt
niche - ANSW-functional role of organisms within an ecosystem
microenvironment - ANSW-where microbes lives, metabolizes within its habitat
biofilm - ANSW-community of microorganisms embedded in a matrix of organic polymer (EPS) adhering
to surface
EPS - ANSW-extracellular polymeric substances- organic polymers
microbrial mats - ANSW-specialized microbrial communities often composed of photosynthetic of
chemolitotrophic bacteria
symbioses - ANSW-often complex relationship on a continuum btw damaging and benefiting the host
virus - ANSW-genetic element containing RNA or DNA that replicates in cells, characterized by having
extracellular state
retrovirus - ANSW-violates central dogma of DNA-> RNA-> protein, RNA converted back to DNA and
reinserted via reverse transcriptase (enzyme)
temperate phage - ANSW-will lyse cell but more gently, sits dormant for a little while
lysogens - ANSW-bacterial cells carrying an integrated phage genome
prophage - ANSW-integrated cell genome
rhizosphere - ANSW-soil that surrounds plant roots- an environment that is significantly different from
the bulk soil environment
rhizoplane - ANSW-actual root surface of the plants
phyllosphere - ANSW-surface of the plant leaf
- can have fungus growing here
Questions and correct/verified Answers
microbial ecology - ANSW-study of interrelationships btw microorganisms and environment
ecosystem - ANSW-community of organisms and their natural environment
population - ANSW-group of organisms in same place @ same time
guild - ANSW-metabolically similar populations that exploit similar resources in the same way
facultative aerobes - ANSW-use aerobic systems but prefer anaerobic systems
psychophiles - ANSW-extreme cold
thermophiles - ANSW-heat
hyperthermophiles - ANSW-extreme heat
halophiles - ANSW-love salt
niche - ANSW-functional role of organisms within an ecosystem
microenvironment - ANSW-where microbes lives, metabolizes within its habitat
biofilm - ANSW-community of microorganisms embedded in a matrix of organic polymer (EPS) adhering
to surface
EPS - ANSW-extracellular polymeric substances- organic polymers
microbrial mats - ANSW-specialized microbrial communities often composed of photosynthetic of
chemolitotrophic bacteria
symbioses - ANSW-often complex relationship on a continuum btw damaging and benefiting the host
virus - ANSW-genetic element containing RNA or DNA that replicates in cells, characterized by having
extracellular state
retrovirus - ANSW-violates central dogma of DNA-> RNA-> protein, RNA converted back to DNA and
reinserted via reverse transcriptase (enzyme)
temperate phage - ANSW-will lyse cell but more gently, sits dormant for a little while
lysogens - ANSW-bacterial cells carrying an integrated phage genome
prophage - ANSW-integrated cell genome
rhizosphere - ANSW-soil that surrounds plant roots- an environment that is significantly different from
the bulk soil environment
rhizoplane - ANSW-actual root surface of the plants
phyllosphere - ANSW-surface of the plant leaf
- can have fungus growing here
