Mineral Nutrition MCQ Questions for Class 11 Biology Chapter 12 with Answers

Find here the NCERT chapter-wise Multiple Choice Questions from Class 11 Biology Book Chapter 12 Mineral Nutrition with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Mineral Nutrition. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

NCERT Chapters for Class 11 Biology

Q1. Main source of nitrogen for plants is

(i) Atmoshpere
(ii) Soil
(iii) Nitrifying bacteria
(iv) Water soluble nitrites nitrates.

(i) Atmosphere.

Q2. The formation of first stable product of nitrogen fixation is catalysed by enzyme

(i) dehydrogenase
(ii) nitrogenase
(iii) isomerase
(iv) none of these

(ii) nitrogenase

Q3. Which is essential for root hair growth?

(i) Zn
(ii) Mo
(iii) Ca
(iv) S

(iii) Ca

Q4. Which one of the following organism help in absorption of phosphorus from soil by plants

(i) Glomus
(ii) Frankia
(iii) Rhizobium
(iv) Anabaena

(i) Glomus

Above

Q5. An element which is constituent of every enzyme and is thus essential for ail biochemical reactions in plants is

(i) Nitrogen
(ii) Sulphur
(iii) Phosphorus
(iv) Carbon

(i) Nitrogen.

Q6. Which of the following is a group of micronutrients?

(i) Ca, Zn, B
(ii) Fe, Mn, Cu
(iii) Cl, C, Ca
(iv) Ni, Mo, H

(ii) Fe, Mn, Cu

Q7. Which one of the following is a micronutrient in plants?

(i) Potassium
(ii) Magnesium
(iii) Calcium
(iv) Zinc

(iv) Zinc

Q8. The requirement of micro nutrient are always low if the concentration increases it leads to

(i) deficiency symptoms
(ii) Cell differentiation
(iii) Toxicity
(iv) Cell elongation

(iii) Toxicity

Q9. Name the scientist who first showed that plants obtain minerals from the soil for their growth and development.

(i) Woodward
(ii) de-Saussure
(iii) Armon
(iv) Stout.

(i) Woodward.

Q10. In plants, a common symptom caused by deficiency of P, K, Ca and Mg is the

(i) bending of leaf tip
(ii) formation of anthocyanins
(iii) poor development of vasculature
(iv) appearance of dead necrotic tissue

(iv) appearance of dead necrotic tissue

Q11. Which one of the following microbes forms a symbiotic association with plants and helps them in their nutrition.

(i) Aspergillus
(ii) Trichoderma
(iii) Glomus
(iv) Azotobacter

(iii) Glomus

Q12. Non-mineral elements of plants are

(i) Carbon, hydrogen and sulphur
(ii) Carbon, oxygen and nitrogen
(iii) Sulphar, chlorine and nitrogen
(iv) Carbon, hydrogen and oxygen.

(iv) Carbon, hydrogen and oxygen.

Q13. Chlorosis will occur if a plant is grown in

(i) dark
(ii) shade
(iii) strong light
(iv) Fe – free medium

(iv) Fe – free medium

Q14. Those essential element which occur in 1-10 mg/g of dry matter are

(i) Macronutrients
(ii) Micronutrients
(iii) Toxic elements
(iv) Beneficial nutrients

(i) Macronutrients

Q15. The enzyme involved in biological nitrogen fixation are

(i) Carboxylase
(ii) Oxygenase
(iii) Dehydrogenase
(iv) Nitrogenase

(iv) Nitrogenase

Q16. Loss of chloropvll that leads to yellowing of entire leaf or part of it is called

(i) Chlorosis
(ii) Necrosis
(iii) Abscission
(iv) Mottling

(i) Chorosis

Q17. Mineral salts which are absorbed by the roots from soil are in the form of

(i) Dilute solution
(ii) Very concentrated solution
(iii) Concentrated solution
(iv) Very dilute solution

(iv) Very dilute solution

Q18. Deficiency of which of the following can cause yellowing of intravenous regions of leaves?

(i) Potassium
(ii) Calcium
(iii) Phosphorus
(iv) Copper

(i) Potassium

Q19. Analysis of xylem sap shows

(i) presence of enzymes
(ii) presence of organic matter
(iii) presence of nutrients
(iv) presence of mineral salts

(iv) presence of mineral salts

Q20. Appearance of patches of green and non-green areas on the leaves are called

(i) Necrosis
(ii) Chlorosis
(iii) Curling
(iv) Mottling.

(iv) Mottling.

Q21. Which one of the following is not a micronutrient?

(i) Magnesium
(ii) Molybdenum
(iii) Boron
(iv) Zinc

(i) Magnesium

Q22. Minerals present in the soil are absorbed by

(i) stems
(ii) leaf
(iii) roots
(iv) buds

(iii) roots

Q23. Conversion of ammonia into nitrates through Nitrosomonas is called

(i) Nitrogen fixation
(ii) Denitrification
(iii) Ammonification
(iv) Nitrification

(iv) Nitrification

Q24. The yellow disease in tea plant occurs due to

(i) Deficiency of sulphur
(ii) Deficiency of nitrogen
(iii) Excess of sulphur
(iv) None of these

(i) Deficiency of sulphur.

Q25. Which of the following is not a macronutrient

(i) iron
(ii) calcium
(iii) manganese
(iv) phosphorus

(iii) manganese

Q26. Non-symbiotic nitrogen fixing prokaryote is

(i) Frankia
(ii) Acetobacter
(iii) Rhizobium
(iv) Azotobacter

(iv) Azotobacter

Q27. Phosphorous is a constituent of A. Cell membrane B. Nucleic acids C. cellwall D. chlorophyll

(i) C and D
(ii) A and B
(iii) B and C
(iv) D and A

(ii) A and B

Q28. The most common symbiotic nitrogen fixing organism/s is

(i) Azotobacter
(ii) Closteridium
(iii) Rhizobium leguminaris
(iv) Chlorobium.

(iii) Rhizobium leguminaris

Q29. Insectivorous plants grow where

(i) There is carbohydrate deficient soil
(ii) There is nitrogen deficient soil
(iii) Vitamin c is required
(iv) Hormones are required

(ii) There is nitrogen deficient soil

Q30. Which among the following is NOT the source of nitrogen?

(i) Automobile exhaust
(ii) Xylem
(iii) Industrial combustion
(iv) Forest fire

(ii) Xylem

Q31. Deficiency of which of the following can cause yellowing of intravenous regions of leaves?

(i) Potassium
(ii) Calcium
(iii) Phosphorus
(iv) Copper

(i) Potassium

Q32. In non-leguminous plants like Casurina and Alnus symbiotic N fixing bacteria occur in their roots like

(i) Frankia
(ii) Closteridium
(iii) Rhizobium
(iv) Azotobacter.

(i) Frankia.

Q33. Presence of phosphorus

(i) brings about healthy root growth
(ii) promotes fruit ripening
(iii) retards protein formation
(iv) none

(iii) retards protein formation

Q34. The most abundant element found in plants is

(i) Carbon
(ii) Manganese
(iii) Nitrogen
(iv) Iron

(i) Carbon

Q35. Which one of the following microbes forms a symbiotic association with plants and helps them in their nutrition.

(i) Aspergillus
(ii) Trichoderma
(iii) Glomus
(iv) Azotobacter

(iii) Glomus

Q36. Hydroponics is

(i) soilless culture
(ii) nutrient less culture
(iii) water less culture
(iv) none of these

(i) soilless culture

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