A Quiz On Microbial Growth! Trivia
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- 1.Which is the following the main requirement(s) for the bacteria to grow?
- A.
Oxygen requirement
- B.
Nutrient requirement
- C.
Oxygen and nutrient requirement
- D.
Physical and chemical requirement
- 2.Psychrophiles are those bacteria that able to grow under........
- A.
0 – 20ºC
- B.
25 – 40ºC
- C.
50 – 60 ºC
- D.
70 – 110 ºC
- 3.Osmosis is one of the processes in passive transportation. What is the movement of the water when there's high solute concentration outside the cell?
- A.
Water move from inside to outside cell
- B.
Water move from outside to inside cell
- C.
There's no net movement of water molecules.
- 4.Chemical growth requirements essential for microorganism growth is.
- A.
Water only
- B.
Environmental waste.
- C.
Product from other bacterial waste
- D.
Water,carbon,oxygen,phosphorus,Nitrogen,sulfur and trace element
- 5.Microorganism obtained their carbon source from the carbon dioxide are called?
- A.
Chemotroph
- B.
Autotroph
- C.
Heterotroph
- D.
Saprophyte
- 6.Microorganisms obtain their carbon source in many different ways. Those that able to get the carbon source from the organic compound are called?
- A.
Autotroph
- B.
Chemotroph
- C.
Heterotroph
- D.
Organotroph
- 7.Mac Conkey’s agar is a differential media that contains lactose as substrate and neutral red as an indicator. This agar is used to
- A.
Differentiate lactose fermenters from non-lactose fermenters
- B.
Differentiate sucrose fermenters with non-sucrose fermenters bacteria.
- C.
Differentiate glucose fermenters with non - glucose fermenters
- D.
Identify the bacteria that able to degrade peptone into amino acid.
- 8.Bacteria mainly grow via binary fission. Some can grow by
- A.
Budding only
- B.
Spores only
- C.
Budding,spores, or fragmentation
- 9.Organisms do not increase significantly in number and produce large quantities of energy in the form of ATP. Which of the phase in the exponential growth curve explains these statements?
- A.
Lag phase
- B.
Stationary phase
- C.
Log phase
- D.
Decline phase
- 10.What are the factor that shifting the phase to the decline phase ?
- A.
Condition in the medium become less but cell still have the ability to divide rapidly
- B.
Condition in the medium become less and cell lose their ability to divide
- C.
Number of live cells increases at a logarithmic rate
- 11.Growth are referring to the number of cells, not the size.
- A.
True
- B.
False
- 12.Tolerance referring to the survival of bacteria under conditions in which they cannot grow.
- A.
True
- B.
False
- 13.Selective media contain agents that inhibit the growth of certain bacteria while permitting the growth of other.
- A.
True
- B.
False
- 14.Blood agar is unable to cultivate the fastidious microorganisms
- A.
True
- B.
False
- 15.Aseptic technique refers to carry out a procedure under controlled conditions in a manner that will minimize the chance of contamination.
- A.
True
- B.
False
Questions: 45 | Attempts: 25041 | Last updated: Aug 20, 2020
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