Openstax Microbiology Chapter 4 Exam With Complete Solutions.

Where are prokaryotes found? - Everywhere, air, ground, water, human body carbon fixation - Prokaryotes concert CO2 into organic carbon products nitrogen fixation - Conversion of atmospheric nitrogen into ammonia for survival of plants Prokaryotes clean up - Degrade toxic chemicals How many are pathogen? - Less than 1% How can bacteria contaminate food - Food spoilage and food borne illness Prokaryote characteristics - Unicellular lack membrane bound nucleus and organelles microbial ecology - Study interactions btwn populations Cooperative Interactions - Benefit the populations Competitive interactions - one population competes with another for resources Mutualism - Both benefit Amensalism - One harmed and other not affected Commensalism - One benefits and other not affected