Discussion
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- Question
In the Calvin cycle of C3 plants, which molecule is the acceptor of CO2?
Options- A. Erythrose-4-phosphate
- B. Ribulose-l,5-diphosphate
- C. Ribose-5-phosphate
- D. Alpha-ketoglutarate
- Correct Answer
- Ribulose-l,5-diphosphate
- 1. A major plant macronutrient found in nucleic acids and proteins is
Options- A. calcium
- B. nitrogen
- C. sulphur
- D. iron Discuss
- 2. Which of the following aid plants in the acquisition of nitrogen from nitrogen gas of the atmosphere?
Options- A. Bacteria
- B. Algae
- C. Nematodes
- D. Moulds Discuss
- 3. Gypsum is beneficial for
Options- A. phosphorus enriched soil
- B. water logged soil
- C. alkaline soil
- D. saline soil Discuss
- 4. Archaeabacteria differ from the true bacteria as they have
Options- A. different cell membrane lipids
- B. cell wall composition
- C. ribosomal RNA structure
- D. growth not inhibited by antibiotics Discuss
- 5. The colour of flower is due to the presence of
Options- A. chlorophyll
- B. xanthophylls
- C. florigen
- D. chromoplast or anthocyanin Discuss
- 6. What is the metal ligand in chlorophylls?
Options- A. Copper (Cu)
- B. Iron (Fe)
- C. Magnesium (Mg)
- D. Manganese (Mn) Discuss
- 7. Which of the following molecule is produced from the fixation of CO2 in C4 plants?
Options- A. Malate
- B. Oxaloacetate
- C. Pyruvate
- D. Alpha-ketoglutarate Discuss
- 8. During nitrogen fixation the enzyme nitrogenase catalyse the reaction. The reaction is high energy demanding which require approximately
Options- A. 12 ATP
- B. 18 ATP
- C. 25 ATP
- D. 7 ATP Discuss
- 9. Which of the following bacteria genus is capable of oxidizing ammonia (NH4)?
Options- A. Nitrospina
- B. Nitrobacter
- C. Nitrosococcus
- D. Nitrosobacter Discuss
- 10. Chlorophyll is associated with
Options- A. thylakoids
- B. stroma
- C. cristae
- D. matrix Discuss
Nitrogen Fixation and Photosynthesis problems
Search Results
Correct Answer: nitrogen
Correct Answer: Bacteria
Correct Answer: alkaline soil
Correct Answer: cell wall composition
Correct Answer: chromoplast or anthocyanin
Correct Answer: Magnesium (Mg)
Correct Answer: Oxaloacetate
Correct Answer: 18 ATP
Correct Answer: Nitrosococcus
Correct Answer: thylakoids
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