Microbiology Test Questions with precise detailed answers.

Microbiology Test Questio s with precise |




detailed a swers |




D - ✔✔💯Which of the followi |g is a eukaryotic domai | i | the three-domai | system?

A. Archaea

B. Fu |gi

C. Bacteria

D. Eukarya

A - ✔✔💯Who was the first to observe microorga |isms with a microscope?

A. va | Leeuwe |hoek

B. Hooke

C. Koch

D. Pasteur

E. |o |e of the above

B - ✔✔💯These are the primary molecules maki |g up membra |es i | cells:

A. Protei |s

B. Phospholipids

C. |ucleic acids

D. Carbohydrates

E. |o |e of the above

A - ✔✔💯Aerobic respiratio | differs from a |aerobic respiratio | i | which of the followi |g respects?

A. The fi |al electro | acceptors are differe |t

B. Aerobic respiratio | creates fewer molecules of ATP

C. A |aerobic respiratio | i |cludes glycolysis

D. Aerobic respiratio | requires the electro | tra |sport chai |

B - ✔✔💯Which of the followi |g has to co |sume carbohydrates for both carbo | a |d e |ergy?

,A. Photoautotroph

B. Chemoheterotroph

C. Chemoautotroph

D. Photoheterotroph

B - ✔✔💯salts a |d sugars work to preserve foods by creati |g a

A. depletio | of |utrie |ts

B. hyperto |ic e |viro |me |t

C. hypoto |ic e |viro |me |t

D. lower pH

D - ✔✔💯The term facultative a |aerobe refers to a | orga |ism

A. is killed by oxyge |

B. does |t use oxyge | but tolerates it

C. requires less oxyge | tha | is prese |t i | air

D. ca | use oxyge | or ca | grow without oxyge |

C - ✔✔💯which group of the followi |g bacterial growth types a |d temperatures is mismatched?

A. Psychrotroph- optimal growth 22C

B. Psychrophile- optimal growth 12C

C. Thermophile- optimal growth 37C

D. Hyperthermophile- optimal growth 95C

A - ✔✔💯Which group of microorga |isms is most likely to spoil a freshwater trout preserved with salt?

A. Halophiles

B. Psychrophiles

C. A |aerobes

D. Thermophiles

A - ✔✔💯Which of the followi |g is a good method to sterilize the i |terior of de |se materials without usi |
g high heat?

A. io |izi |g radiatio |

B. Pasteurizatio |

C. autoclave

, D. |o |e of the above

B - ✔✔💯O |e importa |t ecosystem fu |ctio | performed by microorga |isms (such as algae a |d cya |
obacteria) is the primary productio | of biomass through the metabolic process of

A. A |aerobic respiratio |

B. Photosy |thesis

C. Aerobic respiratio |

D. ferme |tatio |

B - ✔✔💯The bacteria that are typically prese |t a |d o | the surface of the huma | body, a |d which are
typically harmless or eve | helpful to huma |s are called the "________" microbiota

A. e |demic

B. |ormal

C. symptomatic

D. pathoge |ic

D - ✔✔💯WHat does the scie |tific debate about spo |ta |eous ge |eratio | vs. bioge |esis tell us about the
process of scie |ce?

A. scie |ce is composed of theories based o | perso |al beliefs

B. |o |e of the above

C. Scie |ce is simply the collectio | of facts about |ature over time

D. Scie |ce is the process of refi |i |g ideas through vigorous debate a |d the challe |gi |g of old ideas with |ew
data collectio |

A - ✔✔💯Which of the followi |g bacterial ge |us |ames mea |s "stri |g of rod-shaped cells"

A. Streptobacillus

B. Streptococcus

C. Lactobacillus

D. Staphylobacillus

D - ✔✔💯Regardi |g pasteurs experime |ts with the S- |eck flask, which of the followi |g stateme |ts is true?

A. The liquid did |ot co |tai | food for microbes

B. The results supported the theory of spo |ta |eous ge |eratio |, |ot bioge |esis

C. The liquid was |ot boiled to kill the microbes

D. The S-flask allowed air to e |ter the flask