Fun Trivia : Microbiology

Structure Sub-topic of: Biology Quizzes Interesting Questions, Facts and Information There are a total of 20 general entries. Special Topics Under the Microscope Testing...testing...PROTISTS! The Genetics of Viruses and Bacteria The Gram Stain Bacterial Tidbits The Wonderful World of Protists Diatom details

Interesting Questions, Facts, and Information

Microbiology

What is the role of crystal violet in the performance of a gram stain?

Microbiology Miscellaneous


stain. Crystal violet, a stain, is fixed to the bacterial cell wall by the mordant, iodine. After decolorization and counterstaining with safranin, bacteria appear purple (gram positive) or pink (gram negative).



Which organism causes a sexually transmitted disease?

Microbiology Miscellaneous


Neisseria gonorrhoeae. Neisseria gonorrhoeae is the causative agent of gonorrhea.



Which organism is the causative agent of bubonic plague?

Microbiology Miscellaneous


Yersinia pestis. The bubonic plague epidemics were caused by Yersinia pestis. The bacteria was carried by fleas living on rats.



Which organism is the most common causative agent of urinary tract infections?

Microbiology Miscellaneous


Escherichia coli. While all of these organisms can cause urinary tract infections, Escherichia coli, AKA E. coli, is the most common culprit.



Okazaki fragments are associated with which essential process?

The Wonderful World of Microbiology


DNA replication. Okazaki fragments are the small segments of DNA that are formed on the lagging strand during DNA replication.



Which type of plasmid, when taken up by a bacteria, confers the ability to create a sex pilus?

The Wonderful World of Microbiology


F-plasmid. F-plasmid stands for fertility plasmid, although my biology class used a different mnemonic. :)



Which is least likely to kill bacteria?

The Wonderful World of Microbiology


extreme cold. Extreme cold, while inhibiting the growth of most bacteria, does not usually kill them. And although heat and high and low pH will kill most known species of bacteria, certain species of Archaea can live in these extreme environments.