1. Introduction to Microbiology

Introduction to Bacteria

Multiple Choice
Which three structures are found in all bacterial cells?
Multiple Choice
Approximately how many times smaller is a typical virus compared to a typical bacterium?
Multiple Choice
When are endotoxins typically released from a bacterial cell?
Multiple Choice
Which of the following features distinguishes bacteria from archaea?
Textbook Question
Complete the following table:
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Multiple Choice
Which group of microorganisms is unicellular, prokaryotic, has a cell wall, and often lives in extreme environments?
Multiple Choice
Which bacterial structure prevents bacteria from accurately reading and synthesizing proteins from human DNA?
Multiple Choice
A food worker notices small, pellet-like black droppings in a food storage area. Which of the following is the most likely cause of these droppings?
Multiple Choice
Which bacterial genus is characterized by having waxy mycolic acid in its cell walls?
Multiple Choice
During a tapeworm infection, you would expect to see increased numbers of which type of white blood cell?
Multiple Choice
Lysogeny can result in all of the following except:
Multiple Choice
Which condition is most commonly caused by a bone infection with Group A Streptococci?
Textbook Question
Which of the following statements about E. coli is false?
a. E. coli was the first disease-causing bacterium identified by Koch.
b. E. coli is part of the normal microbiome of humans.
c. E. coli is beneficial in human intestines.
d. E. coli gets nutrients from intestinal contents.
e. None of the above; all the statements are true.
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Textbook Question
Which of the following is not a characteristic of bacteria?
a. Are prokaryotic
b. Have peptidoglycan cell walls
c. Have the same shape
d. Grow by binary fission
e. Have the ability to move
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Textbook Question
Complete the following table.
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