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Mineral Nutrition

Essential Macro and Micronutrients for Plants Practice Questions

20 free Essential Macro and Micronutrients for Plants practice questions for the NCERT Biology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

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All Essential Macro and Micronutrients for Plants questions

20 questions
  1. Q1. Which of the following criteria is NOT required for an element to be considered 'essential' for a plant according to Arnon and Stout?
  2. Q2. Macronutrients are generally present in plant tissues in concentrations of more than:
  3. Q3. Which group of elements is predominantly obtained by plants from $CO_2$ and $H_2O$ rather than from the soil?
  4. Q4. Which of the following is a micronutrient required by plants?
  5. Q5. Which element is a critical component of energy-related chemical compounds like ATP?
  6. Q6. Magnesium is an essential element as it is the central atom in the structure of:
  7. Q7. Which micronutrient is required for the photolysis of water (splitting of water) during photosynthesis?
  8. Q8. A plant element that helps in maintaining the anion-cation balance and the turgidity of cells is:
  9. Q9. Which of the following elements is a component of the vitamins thiamine, biotin, and Coenzyme A?
  10. Q10. Iron is absorbed by plants in the form of:
  11. Q11. Boron is primarily required by plants for:
  12. Q12. Which element is a component of the enzyme nitrogenase and nitrate reductase?
  13. Q13. Which of the following is considered a 'Beneficial Element' required by higher plants but not necessarily by all plants?
  14. Q14. The concentration of an essential element below which plant growth is retarded is termed as:
  15. Q15. Chlorosis, the loss of chlorophyll leading to yellowing of leaves, is caused by the deficiency of:
  16. Q16. Which of the following elements is relatively immobile in plants and thus deficiency symptoms appear first in young tissues?
  17. Q17. Necrosis, or the death of leaf tissue, is particularly associated with the deficiency of:
  18. Q18. Toxicity of Manganese in plants is often expressed by the appearance of brown spots surrounded by chlorotic veins and causes deficiency of:
  19. Q19. Which element is an activator for both RuBisCO and PEP carboxylase?
  20. Q20. Alcohol dehydrogenase is activated by which of the following mineral ions?