NEET Biology Mineral Nutrition MCQs Set 05

Multiple Choice Questions (MCQs) for NEET Biology: Mineral Nutrition

Review structured MCQ sets for NEET Biology Mineral Nutrition. Built according to official NEET guidelines, these downloadable questions support daily revision and core concept reinforcement.

Practice Mineral Nutrition MCQs for NEET Biology

View or download the dedicated Mineral Nutrition MCQ resource below. Practicing these 50 objective questions regularly builds familiarity with standard exam patterns and helps secure higher marks in final Biology evaluations.

Multiple Choice Questions

Question 1: Hydroponics refers to growing plants in
(a) Macronutrients culture medium
(b) Water
(c) Solution of mineral nutrients
(d) Soil
Show Answer & Explanation

Answer: (c) Solution of mineral nutrients

Explanation:
1. Hydroponics is the technique of growing plants with their roots immersed in nutrient solution.

Question 2: Select the incorrect statement w.r.t. criteria of essentiality of minerals.
(a) Element must be necessary for normal growth and reproduction
(b) Element must be replaceable by another element
(c) Disorders caused by the absence/deficiency of an element can be corrected only by adding that specific element
(d) Element must be directly involved in plant metabolism
Show Answer & Explanation

Answer: (b) Element must be replaceable by another element

Explanation:
1. Criteria of essentiality say that element must not be replacable by any another element and it must be indespensable and should have a demonstratable function.

Question 3: How many elements have been found to be essential for plants?
(a) 18
(b) 60
(c) 17
(d) 9
Show Answer & Explanation

Answer: (c) 17

Explanation:
1. Out of 60 elements found in protoplasm of plant, 17 are essential elements and 4 are beneficial, rest without any reason or having very little function in some plants.

Question 4: The concentration of elements such as carbon and nitrogen in plants is
(a) Above 10 millimole kg–1 of dry matter
(b) Less than 10 millimole kg–1 of dry matter
(c) Equal to 10 millimole kg–1 of dry matter
(d) Between 1–10 millimole kg–1 of dry matter
Show Answer & Explanation

Answer: (a) Above 10 millimole kg–1 of dry matter

Explanation:
1. Carbon and nitrogen are essential macronutrients, they are present in concentration, more than 10 m mole/ kg of dry matter, i.e., why macronutrients.

Question 5: Which of the following is not essential for all plants?
(a) Mg
(b) Co
(c) Mo
(d) Ni
Show Answer & Explanation

Answer: (b) Co

Explanation:
1. Co is the beneficial element.

Question 6: Select the odd one out from the following w.r.t. macronutrient.
(a) Nitrogen
(b) Phosphorus
(c) Iron
(d) Sulphur
Show Answer & Explanation

Answer: (c) Iron

Explanation:
1. Iron is a micronutrient.

Question 7: Which of the following is a micronutrient?
(a) Ca
(b) Mg
(c) K
(d) Ni
Show Answer & Explanation

Answer: (d) Ni

Explanation:
1. Nickel comes under 8 micronutrients, rest are macronutrients.

Question 8: Which of the following is not a beneficial element?
(a) Na
(b) Co
(c) K
(d) Si
Show Answer & Explanation

Answer: (c) K

Explanation:
1. "Rest are beneficial elements". K is essential macronutrient.

Question 9: Select incorrect statement w.r.t. micronutrients.
(a) Become toxic in excess
(b) Involved in activation of enzymes
(c) Involved in building of protoplasmic constituents
(d) Concentration is less than 10 millimole kg–1 of dry matter
Show Answer & Explanation

Answer: (c) Involved in building of protoplasmic constituents

Explanation:
1. N, P and S are protoplasmic elements as they form protoplasm along with C, H and O.

Question 10: Major function of trace elements is to act as
(a) Constituent of hormones
(b) Constituent of amino acids
(c) Constituent of chlorophyll
(d) Cofactor of enzymes
Show Answer & Explanation

Answer: (d) Cofactor of enzymes

Explanation:
1. Trace elements are micronutrients included in functioning of enzymes.
2. N is constituent of amino acid and hormones.
3. Mg is constituent of chlorophyll.

Question 11: Select the incorrect match.
(a) Mn – Photolysis of water
(b) Ca – Synthesis of middle lamella
(c) P – Component of ATP
(d) Zn – Constituent of coenzyme A
Show Answer & Explanation

Answer: (d) Zn – Constituent of coenzyme A

Explanation:
1. Zn activates alcohol dehydrogenase Zn2+  Carboxylases Sulphur is a constituent of coenzyme A.

Question 12: Element present in middle lamella is
(a) Zn
(b) Cu
(c) Ca
(d) K
Show Answer & Explanation

Answer: (c) Ca

Explanation:
1. Ca and Mg form middle lamella.
2. Calcium Magnesium pectate pectate.

Question 13: An element which helps in joining the subunits of ribosomes is
(a) Ca
(b) Mg
(c) K
(d) S
Show Answer & Explanation

Answer: (b) Mg

Explanation:
1. Magnesium concentration decides wheather two subunits of ribosomes will remain associated or separate. 2+ 50 S Mg 50 S 30 S 30 S.

Question 14: Which of the following groups of elements are mobile?
(a) N, P, K
(b) Ca, Mg, S
(c) Ca, S, Fe
(d) Ca, N, P
Show Answer & Explanation

Answer: (a) N, P, K

Explanation:
1. N, P & K are mobile elements i.e., they can be translocated to younger tissues.

Question 15: Amino acids like methionine and cysteine contain
(a) Zn
(b) S
(c) B
(d) Cl
Show Answer & Explanation

Answer: (b) S

Explanation:
1. Methionine and cysteine are the only two amino acids which contain sulphur.

Question 16: Which of the following is not a physiological role of potassium?
(a) Maintain anion-cation balance in cells
(b) Maintain turgidity of cells
(c) Help in opening and closing of stomata
(d) Synthesize auxins
Show Answer & Explanation

Answer: (d) Synthesize auxins

Explanation:
1. Zn is used for auxin synthesis.
2. Other three works done by potassium.

Question 17: An element involved in metabolism of urea is
(a) Na
(b) Si
(c) Ni
(d) Zn
Show Answer & Explanation

Answer: (c) Ni

Explanation:
1. Nickle is the component of enzyme urease.

Question 18: Deficiency symptoms of an element tend to appear first in young leaves. It indicates that element is relatively immobile. Which one of the following elemental deficiencies would show such symptoms?
(a) Ca
(b) Mg
(c) N
(d) K
Show Answer & Explanation

Answer: (a) Ca

Explanation:
1. Mg, N & K are mobile.

Question 19: Plants absorb zinc as
(a) Zn
(b) ZnSO4
(c) Zn2+
(d) Zn(NO3)2
Show Answer & Explanation

Answer: (c) Zn2+

Explanation:
1. Absorption of zinc occurs in the form of Zn2+ ions.

Question 20: Mineral present in cytochrome is commonly
(a) Fe
(b) Mn
(c) Mo
(d) Mg
Show Answer & Explanation

Answer: (a) Fe

Explanation:
1. Constituent of ferrodoxin and cytochromes.

Question 21: An element essential for nitrogen metabolism is
(a) K
(b) Mo
(c) Mg
(d) Mn
Show Answer & Explanation

Answer: (b) Mo

Explanation:
1. Mo-Fe and Fe are two subunits of nitrogenase enzyme used for nitrogen fixation.

Question 22: Boron takes part in
(a) Photosynthesis
(b) Activation of enzymes involved in respiration
(c) Transport of carbohydrates through phloem
(d) Nitrogen metabolism
Show Answer & Explanation

Answer: (c) Transport of carbohydrates through phloem

Explanation:
1. Potassium is for photosynthesis and activation of enzymes involved in respiration.
2. Mo for nitrogen metabolism.

Free study material for Biology

Practice MCQs for NEET Biology Mineral Nutrition

NEET Biology Mineral Nutrition Objective Test Questions

Test your conceptual understanding of Mineral Nutrition with these targeted multiple-choice questions. Designed in alignment with the latest NEET curriculum for NEET Biology, these problem sets build accuracy and prepare students for objective exams.

NCERT-Aligned Objective Questions and Solutions

Each question includes structured solution keys mapped directly to standard NEET textbooks, helping students evaluate their reasoning and correct mistakes early in their revision.

Next Steps in Your Exam Preparation

Wrap up your chapter revision by testing your knowledge against standard question formats. Everything on our platform is provided free of charge.

FAQs

Where can I access latest NEET Biology Mineral Nutrition MCQs Set 05?

You can get most exhaustive NEET Biology Mineral Nutrition MCQs Set 05 for free on StudiesToday.com. These MCQs for NEET Biology are updated for the 2026-27 academic session as per NEET examination standards.

Are Assertion-Reasoning and Case-Study MCQs included in the Biology NEET material?

Yes, our NEET Biology Mineral Nutrition MCQs Set 05 include the latest type of questions, such as Assertion-Reasoning and Case-based MCQs. 50% of the NEET paper is now competency-based.

How do practicing Biology MCQs help in scoring full marks in NEET exams?

By solving our NEET Biology Mineral Nutrition MCQs Set 05, NEET students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Biology.

Do you provide answers and explanations for NEET Biology Mineral Nutrition MCQs Set 05?

Yes, Biology MCQs for NEET have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused NEET exams.

Can I practice these Biology NEET MCQs online?

Yes, you can also access online interactive tests for NEET Biology Mineral Nutrition MCQs Set 05 on StudiesToday.com as they provide instant answers and score to help you track your progress in Biology.