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31 Years NEET Previous Year Questions: Mineral Nutrition - 1


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30 Questions MCQ Test Biology 31 Years NEET Chapterwise Solved Papers | 31 Years NEET Previous Year Questions: Mineral Nutrition - 1

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 for NEET 2022 is part of Biology 31 Years NEET Chapterwise Solved Papers preparation. The 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 questions and answers have been prepared according to the NEET exam syllabus.The 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 below.
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31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 1

Match Column-I with Column- II.     [2021]

Choose the correct answer from the options given below.

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 1
  • Ammonia is first oxidised to nitrite by the bacteria Nitrosomonas and/or Nitrococcus.
  • The nitrite is further oxidised to nitrate with the help of the bacterium Nitrobacter.
  • Denitrification is carried by bacteria Pseudomonas and Thiobacillus.
  • Both Rhizobium and Frankia are free-living in soil, but as symbionts, can fix atmospheric nitrogen.
31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 2

The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plant is / are.  [2020]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 2

Nitrogenase enzyme are responsible for the reduction of N2 to ammonia the product of reaction catalized by nitrogenase in root nodule of leguminous plants are ammonia and hydrogen

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 3

A thiobacillus is a group of bacteria helpful in carrying out    [2019]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 3

Denitrification is the process opposite to nitrogen fixation in which nitrates (NO-3) get converted into N2 gas by bacteria Pseudomonas denitrificans and Thiobacillus denitrificans.

In the process of denitrification, nitrates are reduced to gaseous compounds of nitrogen. Common bacteria causing denitrification of soil are Thiobacillus denitrificans, Pseudomous denitrificans, etc.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 4

Which of the following elements is responsible for maintaining turgor in cells?    [2018]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 4

Potassium helps in the maintenance of cell turgidity and opening and closing of stomata.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 5

In which of the following all three are macronutrients?     [2016]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 5

From the given options, Option b has a better answer with macronutrients - Nitrogen, potassium and Phosphorus.
All other options have only micronutrients and thus 'b' turns the correct answer.
The primary macronutrients: nitrogen (N), phosphorus (P), potassium (K)
The three secondary macronutrients: calcium (Ca), sulfur (S), magnesium (Mg) the micronutrients/trace minerals: boron (B), chlorine (Cl), manganese (Mn), iron (Fe), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni).
In relatively large amounts, the soil supplies nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur; these are often called the macronutrients. In relatively small amounts, the soil supplies iron, manganese, boron, molybdenum, copper, zinc, chlorine, and cobalt, the so-called micronutrients. Nutrients must be available not only in sufficient amounts but also in appropriate ratios. So, the correct answer is option b.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 6

Minerals known to be required in large amounts for plant growth include:    [2015]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 6

Phosphorus, potassium, sulphur and calcium play an important role in plants growth. These minerals are required in large amount.
Phosphorus is required for all phosphorylation reactions and constitution of cell membrane, nucleic acids and some proteins.
Potassium is related to protein synthesis, closing and opening of stomata and activation of enzyme. 
Calcium regulates metabolic activities, function of cell membrane and stabilizes the structure of chromosomes.
Sulphur is the main constituent of the amino acids, cystine and methionine, coenzymes and vitamins.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 7

Deficiency symptoms of nitrogen and potassium are visible first in:   [2014]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 7

The parts of the plants that show the deficiency symptoms also depend on the mobility of the element in the plant. For elements that are actively mobilised within the plants and exported to young developing tissues, the deficiency symptoms tend to appear first in the older tissues. 

For example, nitrogen, potassium and magnesium are visible first in the senescent leaves.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 8

Which of the following elements is a constituent of biotin? [NEET Kar. 2013]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 8

Biotin, also known as vitamin H, is a water-soluble B-vitamin. It is a coenzyme for carboxylase enzymes, involved in the synthesis of fatty acids, isoleucine, valine and in gluconeogenesis. Sulphur is a constituent of biotin. 

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 9

Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas (N2) to the atmosphere? [NEET Kar. 2013]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 9

In the global nitrogen cycle, bacterial denitrification is recognised as important process that converts fixed nitrogen to atmospheric nitrogen gas, N2. In marine nitrogen cycle, anaerobic oxidation of ammonium coupled to nitrate reduction, contributes substantially to N2–production in marine sediments.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 10

The first stable product of fixation of atmospheric nitrogen in leguminous plants is : [NEET 2013] (a) (b) (c)

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 10

Ammonia is first stable compound produce in fixation of atmospheric nitrogen in leguminous plant. A molecule of nitrogen is change into two molecules of ammonia. It requires 16 ATP, a source of electron donor ferredoxin, hydrogen donor NADPH or FMNH2 and dinitrogenase enzyme.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 11

For its action, nitrogenase requires [2012M]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 11

Nitrogenases are enzymes used by some organisms to fix atmospheric nitrogen gas. It is the only known family of enzymes that accomplish this process. Nitrogenase requires high input of energy & anaerobic condition.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 12

Read the following four statements (A-D).

(A) Both, photophosphorylation and oxidative phosphorylation involve the uphill transport of protons across the membrane.

(B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.

(C) Stamens in flowers of Gloriosa and Petunia are polyandrous.

(D) Symbiotic nitrogen-fixers occur in the free-living state also in soil.
 

Q. How many of the above statements are correct? [2012M]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 12

Symbiotic nitrogen-fixing bacteria and Cyanobacteria are found in association to plant. The most common symbiotic bacteria is Rhizobium.
In dicot stem, the cambium present between xylem and phloem in vascular bundles is called fascicular or intrafascicular cambium. Besides this some cells of medullary rays also become meristematic and called interfascicular cambium.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 13

For its activity, carboxypeptidase requires [2012M]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 13

Carboxypeptidase is an exopeptidase enzyme secreted by the pancreas that acts only on the peptide linkage of a terminal amino acid containing a free carboxyl group. Zinc is a cofactor for carboxypeptidase. In digestion carboxypeptidase, requires zinc for its protein degrading action.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 14

Which one of the following is correctly matched ? [2012]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 14

Active transport needs energy for the transport of molecules in the cells. Translocation occurs through the plasmodesmata. Bakanae disease affect the rice plant. 

Correct option (c) Potassium - Readily immobilisation

Explanation : Active transport of nutrients require ATP Symplast includes translocation through plasmodesmata. Bakane disease of rice was found by Hori (1918) to be caused due to Gibberella fujikuroi. None of the options is correct Option (c) may be correct if statement be read as "Potassium readily moibilisation" instead of "potassium readily immobilisation.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 15

Best  defined function of  Manganese in green plants is :   [2012]     

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 15

The best defined function of manganese is in the splitting of water to liberate oxygen during photosynthesis. It is absorbed in the form of manganous ions (Mn2+). It activates many enzymes involved in photosynthesis, respiration and nitrogen metabolism.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 16

Which one of the following is essential for photolysis of water ? [2011M]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 16

Photolysis is catalysed by the proteinbound inorganic complex containing manganese ions (oxygen evolving complex) of photosystem II.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 17

Which one of the following is not an essential mineral element for plants while the remaining three are? [2011M]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 17

Cadmium is not an essential element for 
plants. Phosphorus is macronutrient and iron and manganese are micronutrients for plants.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 18

The function of leg haemoglobin in the root nodules of legumes is : [2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 18

Leghaemoglobin is the haemoglobin like red pigments found in root nodules of legumes and reported to function as an oxygen-carrying pigment in symbiotic nitrogen fixation.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 19

Nitrifying bacteria : [2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 19

The nitrifying bacteria bring about transformations of ammonia to nitrite and of nitrite to nitrate.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 20

Which one of the following elements in plants is not remobilised? [2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 20

Calcium is not remobilized from the leaves to the fruits, like potassium, phosphorus and sulphur. It occurs abundantly in a non-exchangeable form such as anorthite (CaAl2Si2O8).

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 21

A prokaryotic autotrophic nitrogen fixing symboint is found in : [2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 21

A prokaryotic autotrophic nitrogen fixing symbiont is found in Cycas.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 22

One of the free -living, anaerobic nitrogen - fixer is: [2010]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 22

Rhodospirillum is a free-living, anaerobic nitrogen fixer bacteria. It can synthesize its food in presence of light under anaerobic condition.
Beijernickia and Azotobacter are free living aerobic nitrogen fixing bacteria. Rhizobium is a symbiotic nitrogen fixing bacteria.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 23

Which one of the following is not a micronutrient? [2010]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 23

Magnesium is a macronutrient. Micronutrients are essential elements that are required by plants in small amount. They include Fe, Cu, B, Mo, Mn, Cl, and Ni. Macronutrients, on the other hand, are those essential elements that are required by plants in larger amount. The examples include C, H, O, N, S, P, K, Ca and Mg.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 24

An element playing important role in nitrogen fixation is : [2010]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 24

Molybdenum is a micronutrient that plays an important role in nitrogen fixation. It is a part of nitrate reductase enzyme that helps in nitrogen fixation.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 25

Which of the following is a symbiotic nitroger fixer?[2009]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 25

Frankia is symbiotic nitrogen fixer in root nodules of several non-legume plants like Casurina and Alnus.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 26

Which one of the following pairs is wrongly matched? [2009]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 26

Alcohol and nitrogenase pair is wrongly matched. Ethanol produces alcohol.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 27

Manganese is required in: [2009]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 27

Manganese is essential for many plant functions. Some of them are:

  • The assimilation of carbon dioxide in photosynthesis.
  • It is involved in the Hill Reaction where water is split during photosynthesis.  
  • It aids in the synthesis of chlorophyll and in nitrate assimilation.  
  • Manganese activates fat forming enzymes.
  • It functions in the formation of riboflavin, ascorbic acid, and carotene.  
  • It functions in electron transport during photosynthesis.
31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 28

Nitrogen fixation in root nodules of Alnus is brought about by: [2008]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 28

Nitrogen fixation in root nodules of Alnus is brought about by Frankia. Frankia is a symbiotic nitrogen fixing bacteria in root nodules of several nonlegune plants like Casuarina (Australian Pine), Myrica and Alnus (Alder). 

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 29

Which one of the following elements is not an essential micronutrient for plant growth? [2007]

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 29

Essential micro elements are Fe, Mn, Zn, B, Cu, Mo and essential macronutrionts are C,H, N, P, S, Ca, K, Mg.

31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 30

Which one of the following is wrong statement

Detailed Solution for 31 Years NEET Previous Year Questions: Mineral Nutrition - 1 - Question 30

Phosphorus: Phosphorus is absorbed by the plants from soil in the form of phosphate ions (either as H PO 2 4 − or HPO4 2− ). Phosphorus is a constituent of cell membranes, certain proteins, all nucleic acids and nucleotides, and is required for all phosphorylation reactions.

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