Mineral Nutrition MCQs for Competitive Exams

Under the topic Mineral Nutrition, you will learn in detail about essential Mineral elements that plants require for growth and development. In addition to that, you will also learn how plants absorb these essential nutrients, deficiency symptoms and significance of nitrogen as a micronutrient and biological nitrogen fixation.

Before moving on to the MCQ on Nutrition, let us go through some important concepts from this chapter. Notably, plants being autotrophs, they derive all these essential elements from the soil.

An essential element can be defined as a component that is crucial for the growth of a plant and the deficiency of which causes disease and hampers its life cycle. Essential elements can be classified into two types based on the amount required by a plant. These are macronutrients and micronutrients.

The following MCQ on Minerals and trace elements will enable you to gain more clarity of the concepts discussed within this chapter. Aside from that, practicing these questions will also help you to revise this section thoroughly before examinations.

Since Mineral Nutrition NEET is an important part of NEET syllabus, students appearing for the same can also go through these questions for a quick revision. Therefore, keeping the requirements of students in mind the questions given below cover all the essential topics within the chapter.

Mineral Nutrition Multiple Choice Questions

The questions given below should enable you to gain an idea about question patterns for Mineral Nutrition NEET.

1. Who among the Following Presented the Theory of Essential Mineral Nutrients in Plants?

1. Carl Linnaeus

2. Aristotle 

3. Arnon and Stout

4. Leonhart Fuchs

2. The Process of Growth of Plants by Suspending their Roots

1. Osmosis

2. Hydroponics

3. Diffusion

4. Aeroponics

3. Dark Green Colouration in Leaves is caused due to Deficiency of which Mineral?

1. Calcium

2. Phosphorus

3. Nitrogen

4. Potassium

4. Which One of the Following is a Magnesium Deficiency Syndrome

1. Elongated stem

2. Chlorosis in young leaves

3. Chlorosis in older leaves

4. Spindly and woody stem

5. Enzymes Involved in Respiration are Activated by which Minerals?

1. Sulphur and iron

2. Potassium and calcium

3. Nitrogen and phosphorus 

4. Magnesium and manganese

6. Which is Not a Micronutrient?

1. Boron

2. Zinc

3. Magnesium

4. Molybdenum

7. What is the Function of Leg-hemoglobin in Root Nodules of Legumes?

1. They act as a catalyst during transamination

2. It carries oxygen to root nodules

3. It acts as a scavenger of oxygen

4. They provides energy to nitrogen-fixing bacteria

8. Among the Elements Given Below, Which One has Not yet Been Proved as Essential for Plants?

1. Zinc

2. Iron

3. Potassium

4. Sodium

9. Plants absorb Nitrogen from the Soil which is in the Form of 

1. Nitrogen oxide

2. Nitric acid

3. Nitrates

4. Free nitrogen gas

10. Which of the Following Components Contain Phosphorus?

1. Carbohydrate 

2. Fat

3. Starch

4. Nucleotide

11. Obligate Parasites are Organisms that 

1. Are saprophytes but can also become parasites.

2. Are pests but can also become saprophytes.

3. Consume only dead and organic matter.

4. Consume living host.

12. Which One of the Following Discovered Nitrogen-fixing Bacteria?

1. Pasteur

2. Lister 

3. Winogradsky

4. Koch

Key: 1. (C), 2. (D), 3. (B), 4. (C), 5. (D), 6. (C), 7. (C), 8. (D), 9. (C), 10. (D), 11. (D), 12. (C)

Plant physiology is an essential topic for class 11 examination as well as for those who want to study botany further. Hence, you need to have a proper understanding of all the basic concepts and definitions. Also, you can find more objective questions like Mineral Nutrition NEET on our website under the same topic, which will enable you to streamline your revision.

Additionally, you can also go through important Nutrition questions and s for exams which will help you to clear their doubts while also improving your chances of scoring better grades. You can also download our Vedantu app for convenient access to these study materials and online interactive sessions.

1.  In plants, what are the common symptoms caused by P, K, Ca, and Mg deficiencies? 

1. Curvature of the blade tip 

2. Formation of anthocyanins 

3. Poor development of the vascular system 

4. Outbreak of dead necrotic tissue

2. What is the function of zinc? 

1. Close the pores 

2. Biosynthesis of 3IAA 

3. Chlorophyll synthesis 

4. Carbohydrate oxidation

3.  Which of the following is the group of micronutrients? 

1. Ca, Zn, B 

2. Fe, Mn, Cu 

3. Cl, C, Ca 

4. Ni, Mo, H

4.  The process of converting NO2– to N2 is called 

1. Nitrification 

2. Ammonization 

3. Denitrification 

4. Nitrogen fixation

5.  The formation of the first stable product of nitrogen fixation is catalyzed by enzymes 

1. Dehydrogenase 

2. Nitrogenized 

3. Isomerase 

4. All of these 

6. What is the toxicity of manganese? 

1. Iron 

2. Calcium 

3. Magnesium 

4. All

7. Whitening occurs when plants grow in 

1. Dark 

2. Shadow 

3. Strong light 

4. Iron-free medium 

Response 

8. Select the correct function of magnesium. 

1. It is part of some coenzymes. 

2. Activates respiratory and photosynthetic enzymes. 

3. Activates the enzyme catalase. 

4. Helps maintain the balance of anions.

9. According to you all Mineral salts that are absorbed from the soil by the roots are? 

1. Dilute solution 

2. Very concentrated solution 

3. Concentrated solution 

4. Very dilute solution 

10.  Which of the following minerals do you think is the component that plays a role in biological nitrogen fixation? 

1. Copper 

2. Manganese 

3. Zinc 

4. Molybdenum

11. Does anyone eat oxygen in the nodules of legumes? 

1. Hemoglobin 

2. Leghemoglobin 

3. Cyanohemoglobin 

4. Any of these 

12. Which nutrients do you think are not micronutrients? 

1. Magnesium 

2. Molybdenum 

3. Boron 

4. Zinc 

13.  Which one of the following nutrients do you think is not a major nutrient? 

1. Iron 

2. Calcium 

3. Manganese 

4. Lin 

14. Carnivorous plants grow everywhere 

1. There is low-carb soil 

2. Some soils are deficient in nitrogen  

3. Vitamin C is required 

4. Hormones required 

15. Phytotron 

1. Controlled humidity 

2. Induction of mutation 

3. Controlled exposure 

4. Growing plants under controlled conditions

16. Which element's toxicity causes brown spots to appear on the leaves? 

1. Mg 

2. Mn 

3. Fe 

4. Cu

17. Existence of phosphorus 

1. Causes healthy root growth 

2. Promote fruit ripeness 

3. Delay protein formation 

4. There is no  for

18. Which elements do you need to open and close the pores? 

1. P 

2. K 

3. About 

4. Na

19. The rash is due to a lack of. 

1. B

2. Mo 

3. Mn 

4. Cu 

20. Referenced NPK 

1. Nitrogen, protein, kinetin 

2. Nitrogen, protein, potassium 

3. Nitrogen, potassium, kinetin 

4. Nitrogen, Phosphorus, Potassium