Check the below NCERT MCQ Questions for Class 11 Biology Chapter 12 Mineral Nutrition with Answers Pdf free download. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. We have provided Mineral Nutrition Class 11 Biology MCQs Questions with Answers to help students understand the concept very well. https://mcqquestions.guru/mcq-questions-for-class-11-biology-chapter-12/
Mineral Nutrition Class 11 MCQs Questions with Answers
Mineral Nutrition Class 11 Chapter 12 MCQ Question 1.
In plants, a common symptom caused by deficiency of P, K, Ca and Mg is the
(a) bending of leaf tip
(b) formation of anthocyanins
(c) poor development of vasculature
(d) appearance of dead necrotic tissue
Answer
Answer: (d) appearance of dead necrotic tissue
Mineral Nutrition MCQ Class 11 Chapter 12 Question 2.
Function of zinc is
(a) Closing of stomata
(b) Biosynthesis of 3-IAA
(c) Synthesis of chlorophyll
(d) Oxidation of carbohydrate
Answer
Answer: (c) Synthesis of chlorophyll
MCQ On Mineral Nutrition Class 11 Chapter 12 Question 3.
Which of the following is a group of micronutrients?
(a) Ca, Zn, B
(b) Fe, Mn, Cu
(c) Cl, C, Ca
(d) Ni, Mo, H
Answer
Answer: (b) Fe, Mn, Cu
Explanation:
Iron, mangenese and copper are micronutrients.
Mineral Nutrition MCQ With Answers Class 11 Chapter 12 Question 4.
The process of conversion of NO2– to N2 is called
(a) nitrification
(b) ammonification
(c) denitrification
(d) nitrogen fixation
Answer
Answer: (c) denitrification
Explanation:
The process of conversation of NO2– to N2 is called denitrification.
Chapter 12 Biology Class 11 MCQs Question 5.
The formation of first stable product of nitrogen fixation is catalysed by enzyme
(a) dehydrogenase
(b) nitrogenase
(c) isomerase
(d) none of these
Answer
Answer: (b) nitrogenase
Explanation:
The first stable product of nitrogen fixation is ammonia obtained from atmospheric nitrogen catalysed enzyme nitrogenase.
Class 11 Chapter 12 Biology MCQs Question 6.
Manganese toxicity leads to deficiency of
(a) iron
(b) calcium
(c) magnesium
(d) all of the above
Answer
Answer: (d) all of the above
Explanation:
Manganese toxicity causes deficiency of iron, magnesium and calcium.
Mineral Nutrition MCQ Pdf Class 11 Chapter 12 Question 7.
Chlorosis will occur if a plant is grown in
(a) dark
(b) shade
(c) strong light
(d) Fe – free medium
Answer
Answer: (d) Fe – free medium
MCQs On Mineral Nutrition Class 11 Chapter 12 Question 8.
Choose the correct function of magnesium.
(a) It is a constituent of several coenzyme.
(b) It activates the enzymes of respiration and photosynthesis.
(c) It activates enzyme catalase.
(d) It helps in maintaining anion-cation balance.
Answer
Answer: (b) It activates the enzymes of respiration and photosynthesis.
Explanation:
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.
It helps to maintain ribosome structure.
MCQ Questions For Class 11 Biology Chapter 12 Question 9.
Mineral salts which are absorbed by the roots from soil are in the form of
(a) Dilute solution
(b) Very concentrated solution
(c) Concentrated solution
(d) Very dilute solution
Answer
Answer: (d) Very dilute solution
Mineral Nutrition MCQs Class 11 Chapter 12 Question 10.
Which one of the following mineral elements plays an in biological nitrogen fixation?
(a) Copper
(b) Manganese
(c) Zinc
(d) Molybdenum
Answer
Answer: (d) Molybdenum
Class 11 Biology MCQ Chapter 12 Question 11.
Oxygen scavangers present in root nodules of legumes is
(a) haemoglobin
(b) leg haemoglobin
(c) cyano haemoglobin
(d) none of these
Answer
Answer: (b) leg haemoglobin
Explanation:
Leg-haemoglobin is the oxygen scavanger in root nodules of legumes.
Mineral Nutrition Questions And Answers Class 11 Chapter 12 Question 12.
Which one of the following is not a micronutrient?
(a) Magnesium
(b) Molybdenum
(c) Boron
(d) Zinc
Answer
Answer: (a) Magnesium
Biology Class 11 MCQ Chapter 12 Question 13.
Which of the following is not a macronutrient
(a) iron
(b) calcium
(c) manganese
(d) phosphorus
Answer
Answer: (c) manganese
MCQ Questions Class 11 Biology Chapter 12 Question 14.
Insectivorous plants grow where
(a) There is carbohydrate deficient soil
(b) There is nitrogen deficient soil
(c) Vitamin c is required
(d) Hormones are required
Answer
Answer: (b) There is nitrogen deficient soil
MCQ Questions For Class 11 Biology Chapter 12 Question 15.
Phytotron is meant for
(a) Controlled humidity
(b) Induction of mutations
(c) Controlled irradiation
(d) Growing plants under controlled environment
Answer
Answer: (d) Growing plants under controlled environment
MCQ On Mineral Nutrition Chapter 12 Class 11 Question 16.
Toxicity of which element leads to the appearance of brown spots on leaves
(a) Mg
(b) Mn
(c) Fe
(d) Cu
Answer
Answer: (b) Mn
Explanation:
Toxicity of mangenese leads to the appearance of the brown spots with chlorotic veins.
Mineral And Nutrition MCQ Chapter 12 Class 11 Question 17.
Presence of phosphorus
(a) brings about healthy root growth
(b) promotes fruit ripening
(c) retards protein formation
(d) none
Answer
Answer: (c) retards protein formation
Mineral Nutrition MCQ Questions Chapter 12 Question 18.
Which element is required for opening and closing of stomata?
(a) P
(b) K
(c) Ca
(d) Na
Answer
Answer: (b) K
Explanation:
Potassium plays an important role in opening and closing of stomata.
Biology MCQ For Class 11 Chapter 12 Question 19.
Exanthema is due to deficiency of
(a) B
(b) Mo
(c) Mn
(d) Cu
Answer
Answer: (d) Cu
Class 11 Biology MCQ Questions Chapter 12 Question 20.
NPK denotes
(a) Nitrogen, Protein, Kinetin
(b) Nitrogen, Protein, Potassium
(c) Nitrogen, Potassium, kinetin
(d) Nitrogen, Phosphorus, Potassium
Answer
Answer: (d) Nitrogen, Phosphorus, Potassium
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