Microbiology - Test Bank Study Guide Graded A+

During ammonification, microorganisms convert: a) Ammonia to mitrates b) Amino acids to ammonia c) Ammonia to dinitrogen gas d) Dinitrogen gas to ammonia e) None is a correct choice {Ans: b) during ammonification, microorganisms convert *amino acids to ammonia*}This early microbiologist used a swan-necked flask to help disprove the Theory of Spontaneous Generation. a) Louis Pasteur b) Edward Jenner c) Robert Koch d) John Tyndall e) Anton van Leeuwenhoek {Ans: a) *Louis Pasteur* was an early microbiologist who used a swan-necked flask to help disprove the Theory of Spontaneous Generation}Which of these are fossilized microbial mats containing photosynthetic bacteria? a) Stromatolites b) Biofilms c) Resin d) Cyanobacteria e) Stalagmites {Ans: a) *stromatolites* are fossilized microbial mats containing photosynthetic bacteria}The proton motive force (PMF) across a cell membrane can be used for which of these processes? a) Generate ATP. b) Propel the flagella. c) symport d) antiport e) lowering pH outside the cell membrane {Ans: a, b, c, d) The proton motive force (PMF) can be used to: - generate ATP - Propel the flagella - symport - antiport pH cannot be adjusted OUTSIDE the cell membrane, only inside}Sulfur globules are an example of inclusion bodies that