Take This Microbiology Test! Trivia Quiz
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There is a lot of things that we get to learn about living things, especially those that we cannot see with our naked eye through studying microbiology. The quiz below is perfect for ensuring that we have a good understanding of it, and it is designed for first-year microbiology students. If you are one of them, try it out and gauge your understanding.
- 1.Like all organisms, bacteria have both ______ and _______ requirements if they are to grow
- 2.Growth usually refers to the increase in which of these
- A.
Increase in the number of cells present
- B.
Increase in the size of cells
- 3.Which of these words describes when a cell is in an environment of its "best growth"
- A.
Optimum
- B.
Minimum
- C.
Maximum
- 4.Which of these words describes when a cell is in its lowest possible temperate environment in which it can still grow?
- A.
Optimum
- B.
Minimum
- C.
Maximum
- 5.Which of these words describes when a cell is in its highest temperate environment in which it can still grow?
- A.
Optimum
- B.
Minimum
- C.
Maximum
- 6.Can grow at 0 degrees C, optimum at <15 degrees. Are considered obligate with respect to cold. Live normally in arctic conditions.
- A.
Psychrotrophs
- B.
Mesophiles
- C.
Extreme (hyper) thermophiles
- D.
Thermophiles
- E.
Psychrophiles
- 7.Can grow at 0 degress C, optimum is about 20-30 degrees. Most important with food spoilage.
- A.
Psychrotrophs
- B.
Mesophiles
- C.
Extreme (hyper) thermophiles
- D.
Thermophiles
- E.
Psychrophiles
- 8.Optimal temperatures are 50-60 degrees C, and range from 40-70.
- A.
Psychrotrophs
- B.
Mesophiles
- C.
Extreme (hyper) thermophiles
- D.
Thermophiles
- E.
Psychrophiles
- 9.Optimal temperatures of 35-40 degrees C, range 10-50. They are the most common, most pathogens are this type.
- A.
Psychrotrophs
- B.
Mesophiles
- C.
Extreme (hyper) thermophiles
- D.
Thermophiles
- E.
Psychrophiles
- 10.Optimum temperatures are 80 degrees C or greater (usually archea). Found in volcanoes
- A.
Psychrotrophs
- B.
Mesophiles
- C.
Extreme (hyper) thermophiles
- D.
Thermophiles
- E.
Psychrophiles
- 11.Which are the only two types of bacteria that humans come into contact with normally?
- A.
Thermophiles and Psychrophiles
- B.
Extreme thermophiles and Psychrotrophs
- C.
Mesophiles and Psychrotrophs
- D.
Thermophiles and Extreme thermophiles
- 12.Most bacteria thrive in a neutral pH, some are called acidophiles whose optimal pH can be as low as what?
- A.
2
- B.
3
- C.
4
- D.
1
- 13.Halophiles are a type of bacteria that can exist in this type of condition.
- A.
Hypertonic
- B.
Hypotonic
- C.
Isotonic
- 14.The chemical need for ammonia, nitrate, or nitrite is found within
- A.
Hetertrophs
- B.
Autotrophs
- C.
Nitrogen fixers
- 15.The chemical need for atmospheric nitrogen (N2) is normally found within
- A.
Hetertrophs
- B.
Autotrophs
- C.
Nitrogen Fixers
- 16.This chemical requirement, phosphorous, is taken in with inorganic phosphate (PO4^(-3))
- A.
Hetertrophs
- B.
Autotrophs
- C.
Nitrogen Fixers
- 17.The need for oxygen to live is an....
- A.
Obligate aerobe
- B.
Facultative anaerobe
- C.
Obligate anaerobe
- D.
Aerotolerant anaerobes
- E.
Microaerophiles
- 18.May use oxygen if present, but can exist without it (fermentation). This is an
- A.
Obligate aerobe
- B.
Facultative anaerobe
- C.
Obligate anaerobe
- D.
Aerotolerant anaerobes
- E.
Microaerophiles
- 19.
- A.
Obligate aerobe
- B.
Facultative anaerobe
- C.
Obligate anaerobe
- D.
Aerotolerant anaerobes
- E.
Microaerophiles
- 20.Will not use oxygen, but it wont kill them. This is an...
- A.
Obligate aerobe
- B.
Facultative anaerobe
- C.
Obligate anaerobe
- D.
Aerotolerant anaerobes
- E.
Microaerophiles
- 21.Need oxygen, but only will grow under low oxygen concentrations (soil, water)
- A.
Obligate aerobe
- B.
Facultative anaerobe
- C.
Obligate anaerobe
- D.
Aerotolerant anaerobes
- E.
Microaerophiles
- 22.Superoxide dismutase is an enzyme that helps the conversion of which of these?
- A.
O2- > H2O2
- B.
H2O2 > H2O and O2
- C.
H2O2 > H2O
- 23.Catalase is an enzyme that aids in the conversion of which of these?
- A.
O2- > H2O2
- B.
H2O2 > H2O and O2
- C.
H2O2 > H2O
- 24.Peroxidase is an enzyme that aids in the conversion of which of these?
- A.
H2O2 > H2O and O2
- B.
O2- > H2O2
- C.
H2O2 > H2O
- 25.CULTURE MEDIA: Liquid
- A.
Culture is suspended in a liquid
- B.
Agar is poured into plates and solidifies, bacteria grow in colonies on the surface
- 26.CULTURE MEDIA: Solid
- A.
Culture is suspended in a liquid
- B.
Agar is poured into plates and solidifies, bacteria grow in colonies on the surface
- 27.Can cold kill bacteria?
- A.
Yes
- B.
No
- 28.Bacteria divide by which of the following?
- A.
Sexual reproduction
- B.
Budding
- C.
Binary Fission
- 29.Generation time is the time it takes for one cell to become
- A.
Two
- B.
Three
- C.
Four
- 30.Bacterial cells grow how?
- A.
Exponentially
- B.
Multiplication
- C.
Logarhithmically
- 31.This phase of growth has little growth, and high metabolic activity.
- A.
The lag phase
- B.
The log phase
- C.
The stationary phase
- D.
The death phase
- 32.This phase has exponential growth.
- A.
The lag phase
- B.
The log phase
- C.
The stationary phase
- D.
The death phase
- 33.In this phase the number of cells remains the same, because the rate of death equals the rate of growth.
- A.
The lag phase
- B.
The log phase
- C.
The stationary phase
- D.
The death phase
- 34.This phase has an exponential decline.
- A.
The lag phase
- B.
The log phase
- C.
The stationary phase
- D.
The death phase
- 35.In order to determine the number of bacterial cells present we must serially dilute the sample, and plate the dilution until a countable plate is reached. Then, count the colonies and multiply by the dilution factor.
- A.
True
- B.
False
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