In this practice test, we have included the 25 most important multiple choice questions from the chapter- Mineral Nutrition (Class 11th Biology). Attempt this test to know your score and practice for a quick revision before the exam.
Mineral nutrition (Class 11th Biology) Revision Test | MCQs for NEET
Score: 0 / 25
Questions
Q1. In plants, a common symptom caused by deficiency of P, K, Ca and Mg is the
appearance of dead necrotic tissue
Q2. Function of zinc is
Synthesis of chlorophyll
Q3. Which of the following is a group of micronutrients?
Iron, mangenese and copper are micronutrients
Q4. The process of conversion of NO2– to N2 is called
The process of conversation of NO2– to N2 is called denitrification
Q5. The formation of first stable product of nitrogen fixation is catalysed by enzyme
The first stable product of nitrogen fixation is ammonia obtained from atmospheric nitrogen catalysed enzyme nitrogenase
Q6. Manganese toxicity leads to deficiency of
Manganese toxicity causes deficiency of iron, magnesium and calcium
Q7. Chlorosis will occur if a plant is grown in
Fe – free medium
Q8. Choose the correct function of magnesium
Magnesium is absorbed by plants as Mg2+ it activates the enzymes of respiration and photosynthesis.It is involved in the synthesis of DNA RNA.It is the constituent of ring structure of chlorophyll.
Q9. Mineral salts which are absorbed by the roots from soil are in the form of
Q10. Which one of the following mineral elements plays an in biological nitrogen fixation?
Q11. Oxygen scavangers present in root nodules of legumes is
Leg-haemoglobin is the oxygen scavanger in root nodules of legumes
Q12. Which one of the following is not a micronutrient?
Magnesium
Q13. Which of the following is not a macronutrient
Q14. Insectivorous plants grow where
There is nitrogen deficient soil
Q15. Phytotron is meant for
Growing plants under controlled environment
Q16. Toxicity of which element leads to the appearance of brown spots on leaves
Toxicity of mangenese leads to the appearance of the brown spots with chlorotic veins.
Q17. Presence of phosphorus
Q18. Which element is required for opening and closing of stomata?
Potassium plays an important role in opening and closing of stomata.
Q19. Exanthema is due to deficiency of
Q20. NPK denotes
Nitrogen, Phosphorus, Potassium
Q21. The nitrogen exists as two nitrogen atoms joined by
triple covalent bonds
Q22. Biological nitrogen fixation was discovered by
Winograndsky
Q23. The enzyme involved in biological nitrogen fixation are
Nitrogenase
Q24. The requirement of micro nutrient are always low if the concentration increases it leads to
Q25. Analysis of xylem sap shows
presence of mineral salts
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