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MCQs

Total Questions : 34 | Page 2 of 4 pages
Question 11. A major plant macronutrient found in nucleic acids and proteins is
  1.    nitrogen
  2.    iron
  3.    sulphur
  4.    calcium
 Discuss Question
Answer: Option A. -> nitrogen
Question 12. Chlorophyll is associated with
  1.    cristae
  2.    matrix
  3.    thylakoids
  4.    stroma
 Discuss Question
Answer: Option C. -> thylakoids
Question 13. Organisms capable of converting N2 to NO3 are
  1.    yeasts
  2.    moulds
  3.    roundworms
  4.    bacteria
 Discuss Question
Answer: Option D. -> bacteria
Question 14. What is the metal ligand in chlorophylls?
  1.    Manganese (Mn)
  2.    Iron (Fe)
  3.    Copper (Cu)
  4.    Magnesium (Mg)
 Discuss Question
Answer: Option D. -> Magnesium (Mg)
Question 15. Nitrosomonous and Nitrobacter obtain their carbon for growth from
  1.    none of these
  2.    elementary carbon
  3.    organic compounds
  4.    carbon dioxide
 Discuss Question
Answer: Option D. -> carbon dioxide
Question 16. Which of the following aid plants in the acquisition of nitrogen from nitrogen gas of the atmosphere?
  1.    Moulds
  2.    Nematodes
  3.    Algae
  4.    Bacteria
 Discuss Question
Answer: Option D. -> Bacteria
Question 17.  Which of the following bacteria genus is capable of oxidizing ammonia (NH4)?
  1.    Nitrospina
  2.    Nitrobacter
  3.    Nitrosococcus
  4.    Nitrosobacter
 Discuss Question
Answer: Option C. -> Nitrosococcus
Question 18.  
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
  1.    harvesting unit
  2.    reaction center
  3.    photosynthetic unit
  4.    chloromass
 Discuss Question
Answer: Option C. -> photosynthetic unit
Question 19.  
What type of long chain alcohol is esterified to plant chlorophyll molecules?
  1.    Dolichol
  2.    Farnesol
  3.    Phytol
  4.    None of these
 Discuss Question
Answer: Option C. -> Phytol
Question 20.  The chief source of nitrogen for green plants is
  1.    atmospheric nitrogen
  2.    nitrates
  3.    ammonium salts
  4.    low molecular weight- organic nitrogenous compound
 Discuss Question
Answer: Option B. -> nitrates

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