1.

    The number of essential nutrients needed in plants is

    A

    16

    B

    5

    C

    4

    D

    8

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Essential plant nutrients

    Related Questions

    1.

    Which of the following metals causes harmful effects?

    A

    Lead

    B

    Cobalt

    C

    Uranium

    D

    All of these

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Toxic metals, Environmental health

    2.

    Which of the following is not considered as a trace element (micronutrient) in the plant?

    A

    MoO2−2Mo{O_2}^{ - 2}

    B

    Cu+2C{u^{ + 2}}

    C

    Mn+2M{n^{ + 2}}

    D

    K+{K^ + }

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Plant micronutrients, Trace elements, Macronutrients

    3.

    Minerals involved in redox reactions in plant cells are

    A

    N, Cu

    B

    Fe, Cu

    C

    Ca, Fe

    D

    Na, Cu

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Redox reactions, Mineral nutrients, Plant physiology

    4.

    Ca2+C{a^{2 + }} is an essential elements in plants. The major function it performs is

    A

    Selective permeability of the cell membrane

    B

    Maintenance of the cell turgidity

    C

    Energy transfer

    D

    Increases hardness of the cell wall

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Plant biology, Mineral nutrition, Calcium function

    5.

    Which element is required for the germination of pollen grains?

    A

    Boron

    B

    Nitrogen

    C

    Chlorine

    D

    Potassium

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Plant Nutrition, Pollen Germination, Micronutrients

    6.

    Which of the following is limiting nutrient for both natural and agricultural ecosystems?

    A

    Nitrogen oxides

    B

    Nitrogen

    C

    Ammonia

    D

    Hydrogen

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Limiting Nutrients, Nitrogen Cycle, Ecosystems

    7.

    Which ion is actively transported into guard cells to facilitate stomatal opening, indirectly contributing to turgor maintenance in surrounding cells?

    A

    Sodium (Na+Na^+)

    B

    Potassium (K+K^+)

    C

    Calcium (Ca2+Ca^{2+})

    D

    Chloride (Cl−Cl^-)

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    PYQ YEAR: 2018
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :turgor pressure, stomata, guard cells, ion transport, plant physiology

    8.

    Minerals absorbed by roots move to the leaf through?

    A

    xylem

    B

    phloem

    C

    sieve tubes

    D

    none

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :plant vascular system, xylem, phloem, mineral transport

    9.

    Who proved for the first time that the plants contain a large number of minerals and microelements?

    A

    Justus von Liebig

    B

    Julius Sachs

    C

    Jan Ingenhousz

    D

    Joseph Priestley

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :History of Plant Nutrition, Mineral Nutrients

    10.

    Sulphur is available in the form of

    A

    SO42−S{O_4}^{2 - }

    B

    SO42+S{O_4}^{2 + }

    C

    SO4S{O_4}

    D

    S2O4{S_2}{O_4}

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Mineral Nutrition
    🎯Topic:Essential Elements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Chemical formulas, polyatomic ions, oxidation states

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