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Home ‣ Biotechnology ‣ Nitrogen Fixation and Photosynthesis Comments
  • Question

  • Nitrosomonous and Nitrobacter obtain their carbon for growth from


  • Options
  • A. organic compounds
  • B. carbon dioxide
  • C. elementary carbon
  • D. none of these

  • Correct Answer
  • carbon dioxide 

    • Nitrogen Fixation and Photosynthesis problems

    Search Results

    • 1. In the presence of carbon monoxide, nitrogen fixation

    • Options
    • A. increases
    • B. decreases
    • C. inhibits
    • D. none of these
      • Discuss
    • 2. The chief source of nitrogen for green plants is

    • Options
    • A. atmospheric nitrogen
    • B. nitrates
    • C. ammonium salts
    • D. low molecular weight- organic nitrogenous compound
      • Discuss
    • 3. Organisms capable of converting N2 to NO3 are

    • Options
    • A. yeasts
    • B. bacteria
    • C. roundworms
    • D. moulds
      • Discuss
    • 4. Chlorophyll is associated with

    • Options
    • A. thylakoids
    • B. stroma
    • C. cristae
    • D. matrix
      • Discuss
    • 5. Which of the following bacteria genus is capable of oxidizing ammonia (NH4)?

    • Options
    • A. Nitrospina
    • B. Nitrobacter
    • C. Nitrosococcus
    • D. Nitrosobacter
      • Discuss
    • 6. What type of long chain alcohol is esterified to plant chlorophyll molecules?

    • Options
    • A. Dolichol
    • B. Farnesol
    • C. Phytol
    • D. None of these
      • Discuss
    • 7. A group of about 300 chlorophyll molecule acting together to trap photons and transfer energy to the pigment molecule at the reaction center may be called as

    • Options
    • A. harvesting unit
    • B. reaction center
    • C. photosynthetic unit
    • D. chloromass
      • Discuss
    • 8. Plants absorb nitrates from soil and convert them into

    • Options
    • A. urea
    • B. ammonia
    • C. nitrogen
    • D. none of these
      • Discuss
    • 9. An organism that relies exclusively on pre-synthesized food molecules is

    • Options
    • A. autotrophic
    • B. photosynthetic
    • C. prokaryotic
    • D. heterotrophic
      • Discuss
    • 10. What is the approximate size (in kb) of the melon mitochondrial genome?

    • Options
    • A. 600 kilobase
    • B. 1200 kilobase
    • C. 2400 kilobase
    • D. 3000 kilobase
      • Discuss

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