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NEET • BIOLOGY • MINERAL NUTRITION

Mineral nutrition practice · Medium

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Showing 31-60 of 90 questions

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31 Medium
31 of 90
Remembering +4 | -1
Insectivorous plants eats the insect for
View answer and explanation
Correct option: B
Nitrogen
Option B (Nitrogen) is correct because insectivorous plants consume insects to obtain nitrogen, which is scarce in their nutrient-poor habitats.
32 Medium
32 of 90
Remembering +4 | -1
Which of the following is considered to be the best chemical method of fixing atmospheric nitrogen?
View answer and explanation
Correct option: C
Haber-Bosch method
Option C (Haber-Bosch method) is correct because the Haber-Bosch method is the most widely used industrial process for nitrogen fixation.
33 Medium
33 of 90
Understanding +4 | -1
Hydroponics help for
View answer and explanation
Correct option: C
to identify the essential elements
Option C (to identify the essential elements) is correct because hydroponics is a key method for determining which elements are essential for plant growth.
34 Medium
34 of 90
Understanding +4 | -1
Some elements like calcium are not remobilised because they are
View answer and explanation
Correct option: A
Structural component
Option A (Structural component) is correct because calcium is a structural component of cell walls and middle lamella, making it difficult to remobilize.
35 Medium
35 of 90
Understanding +4 | -1
Pick Out from the following list the two minerals which are not needed by plants (Majority) but needed by animals.
View answer and explanation
Correct option: C
Na+,IN{a^ + },I
Option C (Na+,IN{a^ + },I) is correct because Sodium and Iodine are essential for most animals but are not generally required by the majority of plants.
36 Medium
36 of 90
Analyzing +4 | -1
Which of the following statements are correct?

i) Magnesium competes with iron and manganese for uptake and with iron for binding with enzymes

ii) Magnesium inhibit calcium translocation in shoot apex

iii) Excess of manganese may induce deficiencies of iron, magnesium and calcium

iv) Symptoms of manganese toxicity may actually be the deficiency symptoms of iron, magnesium and calcium.
View answer and explanation
Correct option: C
iii and iv
Option C (iii and iv) is correct because excess manganese can induce deficiencies of iron, magnesium, and calcium, and the symptoms of manganese toxicity can resemble these deficiencies.
37 Medium
37 of 90
Remembering +4 | -1
Which of the following are reservoirs for phosphorus and nitrogen cycle respectively?
View answer and explanation
Correct option: B
Bedrocks and atmosphere
Option B (Bedrocks and atmosphere) is correct because phosphorus is primarily stored in rocks, while nitrogen's main reservoir is the atmosphere.
38 Medium
38 of 90
Remembering +4 | -1
Which of the following nutrient is required for pollen germination ?
View answer and explanation
Correct option: C
B
Option C (B) is correct because boron is essential for pollen germination and pollen tube growth in plants.
39 Medium
39 of 90
Remembering +4 | -1
Which two important amides found in the plants are structural part of proteins
View answer and explanation
Correct option: C
Glutamine and asparagine
Option C is correct because glutamine and asparagine are the two most important amides found in plants and are crucial structural components of proteins, playing a vital role in nitrogen transport and storage.
40 Medium
40 of 90
Remembering +4 | -1
Which of the following are considered as the roles of iron (Fe) in plants?
I. Important constituent of cytochrome
II. Activator of catalase
III. Essential for chlorophyll synthesis
Choose the correct option
View answer and explanation
Correct option: D
All of these
Option D (All of these) is correct because iron plays all the listed roles in plants: constituent of cytochrome, activator of catalase, and essential for chlorophyll synthesis.
41 Medium
41 of 90
Remembering +4 | -1
Nitrogen is mainly absorbed in the form of
View answer and explanation
Correct option: D
All of these
Option D (All of these) is correct because plants can absorb nitrogen in the form of nitrate, nitrite, and ammonium.
42 Medium
42 of 90
Remembering +4 | -1
The full form of CEA is
View answer and explanation
Correct option: C
Controlled Environment Agriculture
Option C (Controlled Environment Agriculture) is correct because CEA stands for Controlled Environment Agriculture, which refers to the practice of growing crops in a controlled environment.
43 Medium
43 of 90
Remembering +4 | -1
Hydroponics are of three types …A…, a film system and …B…
Choose the correct pair from the option given below
View answer and explanation
Correct option: C
A-tank system; B-aeroponics
Option C (A-tank system; B-aeroponics) is correct because tank systems and aeroponics are two distinct types of hydroponic systems, along with the film system.
44 Medium
44 of 90
Understanding +4 | -1
The major role of minor elements inside living organisms is to act as
View answer and explanation
Correct option: C
Cofactors of enzymes
Option C (Cofactors of enzymes) is correct because minor elements (trace elements) primarily function as cofactors for various enzymes, facilitating biochemical reactions.
45 Medium
45 of 90
Remembering +4 | -1
Which of the following metals causes harmful effects?
View answer and explanation
Correct option: D
All of these
Option D (All of these) is correct because Lead (Pb), Cobalt (Co), and Uranium (U) are all heavy metals that can have harmful effects on biological systems, including plants and animals, when present in excessive amounts.

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46 Medium
46 of 90
Analyzing +4 | -1
Find out the odd one w.r.t role of boron in plants.
View answer and explanation
Correct option: C
Activates catalase
Option C (Activates catalase) is correct because Iron (Fe), not Boron (B), is a component and activator of catalase.
47 Medium
47 of 90
Analyzing +4 | -1
Find out the mismatched of the following?
View answer and explanation
Correct option: C
Zn – Synthesis of cytochromes
Option C (Zn – Synthesis of cytochromes) is correct because Zinc is involved in the synthesis of auxin and activation of enzymes, not cytochromes, which require iron.
48 Medium
48 of 90
Understanding +4 | -1
Which of the following statement is true about the passive uptake of ions?
View answer and explanation
Correct option: A
Passive uptake may be non-mediated or mediated
Option A (Passive uptake may be non-mediated or mediated) is correct because passive uptake can occur through simple diffusion (non-mediated) or through ion channels (mediated).
49 Medium
49 of 90
Application +4 | -1
How many NH3{NH}_3 molecules are produced from the three N2{N}_2 molecules during the symbiotic nitrogen fixation?
View answer and explanation
Correct option: B
6
Option B (6) is correct because each N2N_2 molecule produces two NH3NH_3 molecules, so three N2N_2 molecules produce six NH3NH_3 molecules.
50 Medium
50 of 90
Application +4 | -1
Farmers in a particular region were concentrated that pre-mature yellowing of leaves of a pulse crop might cause decrease in the yield. Which treatment could be most beneficial to obtain maximum seed yield?
View answer and explanation
Correct option: D
Application of iron and magnesium to promote synthesis of chlorophyll
Option D (Application of iron and magnesium to promote synthesis of chlorophyll) is correct because premature yellowing suggests chlorophyll deficiency, which can be addressed by providing iron and magnesium, essential components for chlorophyll synthesis.
51 Medium
51 of 90
Analyzing +4 | -1
Assertion (A): The entry of ions from soil solution to outer space does not require utilization of energy.

Reason (R): The ion carriers present in the plasma membrane are responsible for active uptake of ions.
View answer and explanation
Correct option: B
Both (A) and (R) are true and (R) is not the correct explanation of (A)
Option B is correct because both the assertion and reason are true, but the reason does not explain the assertion. The entry of ions from soil to outer space is passive, and ion carriers are for active uptake.
52 Medium
52 of 90
Understanding +4 | -1
Essential elements perform many functions which includes
I. Permeability of the cell membrane
II. Maintenance of osmotic concentration of the cell sap
III. Major constituents of macromolecules and coenzymes
IV. Buffering action
Choose the correct option
View answer and explanation
Correct option: D
I, II and III
Option D (I, II and III) is correct because essential elements play roles in cell membrane permeability, osmotic concentration, and as constituents of macromolecules and coenzymes.
53 Medium
53 of 90
Remembering +4 | -1
In the initial phase of minerals absorption ions are taken up
View answer and explanation
Correct option: B
Rapidly
Option B (Rapidly) is correct because the initial phase of mineral absorption is characterized by a rapid uptake of ions into the apoplast.
54 Medium
54 of 90
Remembering +4 | -1
Nitrite is converted to nitrate by
View answer and explanation
Correct option: B
Nitrobacter
Option B (Nitrobacter) is correct because Nitrobacter is responsible for converting nitrite to nitrate during nitrification.
55 Medium
55 of 90
Analyzing +4 | -1
Choose the odd one w.r.t critical elements.
View answer and explanation
Correct option: C
FeFe
Option C (FeFe) is correct because Nitrogen (N), Phosphorus (P), and Potassium (K) are considered macronutrients or \"critical elements\" due to their high demand in plants, while Iron (Fe) is a micronutrient.
56 Medium
56 of 90
Analyzing +4 | -1
One of the following is an untrue statement?
View answer and explanation
Correct option: C
Copper is an activator for alcohol dehydrogenase
Option C (Copper is an activator for alcohol dehydrogenase) is correct because Zinc, not Copper, is an activator for alcohol dehydrogenase.
57 Medium
57 of 90
Understanding +4 | -1
Which of the following is not caused by deficiency of mineral?
View answer and explanation
Correct option: B
Etiolation
Option B (Etiolation) is the correct answer because etiolation is caused by a lack of light, not a mineral deficiency.
58 Medium
58 of 90
Understanding +4 | -1
Soilless culture helps in knowing
View answer and explanation
Correct option: D
All of the above
Option D (All of the above) is correct because soilless culture allows for precise control over nutrient levels, revealing toxicity, deficiency, and essentiality.
59 Medium
59 of 90
Analyzing +4 | -1
Assertion (A): Influx of ions into inner space of cells is an active process.

Reason (R): Ions are available for free exchange in free space.
View answer and explanation
Correct option: B
Both (A) and (R) are true and (R) is not the correct explanation of (A)
Option B is correct because both the assertion and the reason are true, but the reason does not explain the assertion. Influx of ions into the inner space is active, and ions are available for free exchange in free space.
60 Medium
60 of 90
Remembering +4 | -1
Nitrogen is absorbed mainly in which of its given in the form, from the soil?
View answer and explanation
Correct option: D
Both (1) and (2)
Option D (Both (1) and (2)) is correct because plants absorb nitrogen from the soil primarily in the form of nitrate (NO3−NO_3^−) and ammonium (NH4+NH_4^+) ions.
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