Quiz Online Uji Nyali 5 Nutrisi Dan Pertumbuhan Mikroorganisme
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
- 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
Questions: 40 | Attempts: 6556 | Last updated: Mar 22, 2022
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