In This Post we are providing Chapter-12 Mineral Nutrition NCERT MCQ for Class 11 Biology which will be beneficial for students. These solutions are updated according to 2021-22 syllabus. These MCQS can be really helpful in the preparation of Board exams and will provide you with a brief knowledge of the chapter.
NCERT MCQ ON MINERAL NUTRITION
Question 1 : ‘Whip-tail’ disease in cauliflower is noted due to deficiency of
- a) molybdenum
- b) manganese
- c) magnesium
- d) nitrogen
Answer : molybdenum
Question 2 : Which of the following is correct set of micronutrient for plants?
- a) Cu, Fe, Zn, B, Mn
- b) Mo, Zn, Cl, Mg, Ca
- c) Mg, Fe, Zn, B, Mn
- d) Mg, Si, Fe, Cu, Ca
Answer : Cu, Fe, Zn, B, Mn
Question 3: A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is
- a) Anabaena
- b) Chlorella
- c) Tolypothrix
- d) Nostoc
Answer : Anabaena
Question 4 : Azotobacter and Beijerinckia are the examples of
- a) non-symbiotic nitrogen-fixers
- b) ammonifying bacteria
- c) None of these
- d) symbiotic nitrogen-fixers
Answer : non-symbiotic nitrogen-fixers
Question 5 : Which of the following is not performed by root hairs ?
- a) CO2 uptake
- b) Oxygen uptake
- c) Water uptake
- d) Mineral uptake
Answer : CO2 uptake
Question 6 : The plant ash is an indication of
- a) mineral salts absorbed by plants
- b) None of the above
- c) waste product
- d) organic matter of plant
Answer : mineral salts absorbed by plants
Question 7 : Hydroponics is
- a) soilless culture
- b) nutrient less culture
- c) water less culture
- d) none of these
Answer : soilless culture
Question 8 : Which element is required in the germination of pollen grain?
- a) Boron
- b) Chlorine
- c) Potassium
- d) Calcium
Answer : Boron
Question 9 : A trace element essential for plant growth and radio-isotope, which is used in cancer therapy is
- a) cobalt
- b) sodium
- c) iron
- d) calcium
Answer : cobalt
Question 10: Which one of the following elements in plants is not remobilised?
- a) Calcium
- b) Sulphur
- c) Phosphorus
- d) Potassium
Answer : Calcium
Question 11: Plants die from prolonged water-logging because
- a) root respiration stops.
- b) cell sap in the plants becomes too dilute.
- c) nutrients leach down due to excess water.
- d) soil nutrients become very dilute.
Answer : root respiration stops.
Question 12 : Which of the following minerals activate the enzymes involved in respiration?
- a) magnesium and manganese
- b) nitrogen and phosphorus
- c) potassium and calcium
- d) sulpur and iron
Answer : magnesium and manganese
Question 13 : Soil can easily become deficient in____________ because these ions are negatively charged and do not stick to negatively charged clay particles.
- a) Nitrate
- b) Ammonium
- c) Both
- d) None of these
Answer : Nitrate
Question 14 : Legumes’ roots have swellings called nodules that
- a) contain nitrogen-fixing bacteria
- b) increases the surface area for water uptake
- c) provide a steady supply of sugar to the host plant
- d) produce antibiotics that protect the plant from soil bacteria
Answer : contain nitrogen-fixing bacteria
Question 15 : Macronutrients are_____ than micronutrients
- a) Needed in greater quantities
- b) More essential
- c) More important for growth
- d) Larger molecules
Answer : Needed in greater quantities
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