Quiz Online Uji Nyali 5 Nutrisi Dan Pertumbuhan Mikroorganisme

20 Questions | Total Attempts: 118

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Quiz Online Uji Nyali 5 Nutrisi Dan Pertumbuhan Mikroorganisme - Quiz

21. B1J007015 BAGAS PRAKOSO 1)60 2)60 3)50 4)90 31. B1J007035 DIAH ASTA PUTRI 1)80 2)90 3)100 4)90 36. B1J007045 DEWI INDRIYATI 1)40 2)60 3)100 4)90


Questions and Answers
  • 1. 
    Below are three different culture media. Use them to answer the following questions.         Medium A             Medium B         Medium C         Tributyrin (a lipid)    Glucose             Na2HPO4         PO4                      Peptone             KH2PO4         KH2PO4               (NH4)2SO4         MgSO4         MgSO4                 KH2PO2            CaCl2         (NH4)2SO4            Na2HPO4          NaHCO3Which of these media, if any are chemically defined?
    • A. 

      Medium A

    • B. 

      Medium B

    • C. 

      Medium A and B

    • D. 

      Medium A and C

    • E. 

      None of these

  • 2. 
    Below are three different culture media. Use them to answer the following questions.         Medium A             Medium B         Medium C         Tributyrin (a lipid)    Glucose             Na2HPO4         PO4                      Peptone             KH2PO4         KH2PO4               (NH4)2SO4         MgSO4         MgSO4                 KH2PO2            CaCl2         (NH4)2SO4            Na2HPO4          NaHCO3 On which medium would an chemoorganotrophic heterotroph grow?
    • A. 

      Medium A

    • B. 

      Medium B

    • C. 

      Medium C

    • D. 

      Medium A and B

    • E. 

      None of these

  • 3. 
    If you are designing an experiment involving a photolithotrophic autotroph; in addition to light, which of the following would be most essential to maintaining growth of the organism?
    • A. 

      A source of CO2

    • B. 

      A continual supply of abundant oxygen

    • C. 

      A nutrient medium containing glucose

    • D. 

      Keeping the cultures at 37°C

    • E. 

      Adding chlorophyll to the culture medium

  • 4. 
    The addition of which of the following would change a chemically defined medium into a complex medium?
    • A. 

      Biotin (a vitamin)

    • B. 

      K2HPO4

    • C. 

      NH4NO3

    • D. 

      Maltose

    • E. 

      Yeast extract

  • 5. 
    Which of the following procedures can be used to isolate a pure culture of a bacterium from a mixture?
    • A. 

      Streak plating

    • B. 

      Dilution plating

    • C. 

      Enrichment culture

    • D. 

      All the above can be used to isolate a pure culture of a bacterium from a mixture.

    • E. 

      None of the above can be used to isolate a pure culture of a bacterium from a mixture.

  • 6. 
    Which of the following is a micronutrient?
    • A. 

      Carbon

    • B. 

      Manganese

    • C. 

      Potassium

    • D. 

      Magnesium

    • E. 

      Nitrogen

  • 7. 
    Which of the following is a macronutrient?
    • A. 

      Manganese

    • B. 

      Magnesium

    • C. 

      Molybdenum

    • D. 

      Zinc

    • E. 

      Cobalt

  • 8. 
    Which of the following uses radiant energy as their energy source?
    • A. 

      Chemotroph

    • B. 

      Lithotroph

    • C. 

      Autotroph

    • D. 

      Heterotroph

    • E. 

      Phototroph

  • 9. 
    Which of the following obtain energy from the oxidation of inorganic or organic chemicals?
    • A. 

      Chemotroph

    • B. 

      Lithotroph

    • C. 

      Autotroph

    • D. 

      Heterotroph

    • E. 

      Phototroph

  • 10. 
    An organism is capable of oxidizing H2S and using the energy obtained from the reaction to reduce carbon dioxide. Which type of metabolism does this organism possess?
    • A. 

      Photolithotrophic autotroph

    • B. 

      Chemoorganotrophic heterotroph

    • C. 

      Photoorganotrophic heterotroph

    • D. 

      Chemolithotrophic autotroph

    • E. 

      Not enough information to determine which type

  • 11. 
    _____________ use carbon dioxide as their sole or principal carbon source
    • A. 

      Organotrophs

    • B. 

      Chemotrophs

    • C. 

      Phototrophs

    • D. 

      Heterotrophs

    • E. 

      Autotrophs

  • 12. 
    ____________ use reduced organic compounds as their electron source
    • A. 

      Organotrophs

    • B. 

      Chemotrophs

    • C. 

      Phototrophs

    • D. 

      Heterotrophs

    • E. 

      Autotrophs

  • 13. 
    Growth factors are organic compounds required by the cell because they are essential cell components (or precursors of these components) that the cell cannot synthesize.
    • A. 

      TRUE

    • B. 

      FALSE

  • 14. 
    Knowledge of specific growth factor requirements makes possible quantitative growth-response assays.
    • A. 

      TRUE

    • B. 

      FALSE

  • 15. 
    A phenomenon in which molecules move from an area of high concentration to an area of low concentration because of random thermal agitation
    • A. 

      Facilitated diffusion

    • B. 

      Passive diffusion

    • C. 

      Active transport

    • D. 

      Group translocation

    • E. 

      Iron uptake

  • 16. 
    The organism secretes siderophores that complex with the very insoluble ferric ion, which is then transported into the cell
    • A. 

      Facilitated diffusion

    • B. 

      Passive diffusion

    • C. 

      Active transport

    • D. 

      Group translocation

    • E. 

      Iron uptake

  • 17. 
    A process in which metabolic energy is used to move molecules to the cell interior where the solute concentration is already higher (i.e., it runs against the concentration gradient).
    • A. 

      Facilitated diffusion

    • B. 

      Passive diffusion

    • C. 

      Active transport

    • D. 

      Group translocation

    • E. 

      Iron uptake

  • 18. 
    A process that involves a carrier molecule (permease) to increase the rate of diffusion; net effect is limited to movement from an area of higher concentration to an area of lower concentration
    • A. 

      Facilitated diffusion

    • B. 

      Passive diffusion

    • C. 

      Active transport

    • D. 

      Group translocation

    • E. 

      Iron uptake

  • 19. 
    A culture medium is a solid or liquid preparation used to grow, transport, and store microorganisms
    • A. 

      TRUE

    • B. 

      FALSE

  • 20. 
    The below statement is not true:
    • A. 

      A pure culture is a population of cells arising from a single cell

    • B. 

      The spread plate and streak plate methods separate cells on an agar surface such that each cell grows into a completely isolated colony (a macroscopically visible growth or cluster of microorganisms on a solid medium)

    • C. 

      The pour plate method involves diluting a sample to decrease the number of microorganisms, mixing the dilution with agar, and then pouring the mixture into a petri dish

    • D. 

      Colony morphology helps microbiologists identify bacteria because individual species often form colonies of characteristic size and appearance

    • E. 

      A pure culture is a population of cells arising from a mix cell

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