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Plant Kingdom MCQ | Science GK (Botany) Mock Test for RRB NTPC & Group D 2025-26

Plant Kingdom MCQ – Free RRB NTPC & Group D Botany Mock Test | TopperIQ

RRB NTPC & Group D Biology Mock Test — Plant Kingdom (Botany)

Practice 25 free MCQ on Plant Kingdom (Botany) for RRB NTPC, RRB Group D & Railway exams. Covers Photosynthesis, Chlorophyll, Xylem & Phloem, Transpiration, Plant Hormones, Nitrogen Fixation, Algae, Bryophytes, Pteridophytes, Gymnosperms & Angiosperms — with 12-min timer, instant score & explanations in English, Hindi, Bengali & Nepali.

๐ŸŒฟ Photosynthesis๐ŸŸข Chlorophyll๐Ÿ’ง Xylem & Phloem๐ŸŒฑ Plant Hormones๐Ÿงซ Nitrogen Fixation๐ŸŒพ Transpiration๐ŸŒบ Angiosperms๐ŸŒฒ Gymnosperms๐Ÿƒ Bryophytes๐ŸŒฟ Osmosis
๐Ÿ“ 25 Questions⏱ 12 Minutes๐ŸŒ 4 Languages✅ Free & Instant Score๐Ÿ“„ PDF Scorecard

Plant Kingdom Mock Test

Biology · RRB NTPC & Group D · 25 Questions · 12 Min

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    Frequently Asked Questions — Plant Kingdom & Botany

    What is the equation for photosynthesis?
    6CO₂ + 6H₂O + Sunlight → C₆H₁₂O₆ + 6O₂. Plants absorb carbon dioxide and water in the presence of sunlight and chlorophyll to produce glucose and oxygen. This is the most asked botany topic in RRB exams.
    Which mineral is present in chlorophyll?
    Chlorophyll contains Magnesium (Mg) at its centre — a porphyrin ring with magnesium at the core. This is why magnesium deficiency causes yellowing of leaves (chlorosis).
    What is the difference between xylem and phloem?
    Xylem transports water and minerals upward from roots to leaves. It contains dead cells. Phloem transports prepared food (sugars) from leaves to all parts. It contains living cells. Xylem and phloem together form the vascular bundle.
    Which bacteria fixes nitrogen in legume root nodules?
    Rhizobium bacteria live in root nodules of leguminous plants (pea, soybean, groundnut, gram). They fix atmospheric nitrogen (N₂) into ammonia (NH₃), enriching soil fertility.
    เฆชাเฆฆเฆช เฆฐাเฆœ্เฆฏ เฆฅেเฆ•ে RRB NTPC-เฆคে เฆ•োเฆจ เฆช্เฆฐเฆถ্เฆจเฆ—ুเฆฒো เฆธเฆฌเฆšেเฆฏ়ে เฆฌেเฆถি เฆ†เฆธে?
    เฆธเฆฌเฆšেเฆฏ়ে เฆฌেเฆถি เฆ†เฆธে: เฆธাเฆฒোเฆ•เฆธংเฆถ্เฆฒেเฆทเฆฃ (6CO₂+6H₂O→C₆H₁₂O₆+6O₂), เฆ•্เฆฒোเฆฐোเฆซিเฆฒে เฆฎ্เฆฏাเฆ—เฆจেเฆถিเฆฏ়াเฆฎ, เฆœাเฆ‡เฆฒেเฆฎ (เฆœเฆฒ เฆชเฆฐিเฆฌเฆนเฆจ) เฆ“ เฆซ্เฆฒোเฆฏ়েเฆฎ (เฆ–াเฆฆ্เฆฏ เฆชเฆฐিเฆฌเฆนเฆจ), เฆฐাเฆ‡เฆœোเฆฌিเฆฏ়াเฆฎ, เฆ…เฆ•্เฆธিเฆจ, เฆ‡เฆฅিเฆฒিเฆจ, เฆ…্เฆฏাเฆฌเฆธিเฆธিเฆ• เฆ…্เฆฏাเฆธিเฆก, เฆฌাเฆท্เฆชเฆฎোเฆšเฆจ, เฆฌ্เฆฐাเฆฏ়োเฆซাเฆ‡เฆŸ, เฆ…্เฆฏাเฆž্เฆœিเฆ“เฆธ্เฆชাเฆฐ্เฆฎ
    เคชाเคฆเคช เคฐाเคœ्เคฏ เคธे RRB NTPC เค”เคฐ Group D เคฎें เค•ौเคจ เคธे เคช्เคฐเคถ्เคจ เคธเคฌเคธे เคœ्เคฏाเคฆा เคชूเค›े เคœाเคคे เคนैं?
    เคธเคฌเคธे เคœ्เคฏाเคฆा เคชूเค›े เคœाเคจे เคตाเคฒे เคŸॉเคชिเค•: เคช्เคฐเค•ाเคถ-เคธंเคถ्เคฒेเคทเคฃ (6CO₂+6H₂O→C₆H₁₂O₆+6O₂), เค•्เคฒोเคฐोเคซिเคฒ เคฎें เคฎैเค—्เคจीเคถिเคฏเคฎ, เคœाเค‡เคฒเคฎ (เคœเคฒ เคชเคฐिเคตเคนเคจ) เค”เคฐ เคซ्เคฒोเคเคฎ (เคญोเคœเคจ เคชเคฐिเคตเคนเคจ), เคฐाเค‡เคœोเคฌिเคฏเคฎ, เค‘เค•्เคธिเคจ, เค‡เคฅिเคฒीเคจ, เคเคฌ्เคธिเคธिเค• เคเคธिเคก, เคตाเคท्เคชोเคค्เคธเคฐ्เคœเคจ, เคฌ्เคฐाเคฏोเคซाเค‡เคŸ, เคंเคœिเคฏोเคธ्เคชเคฐ्เคฎ
    What is the role of plant hormones in RRB exam questions?
    Commonly asked: Auxin — cell elongation, phototropism; Gibberellin — stem elongation, seed germination; Cytokinin — cell division; Abscisic Acid (ABA) — dormancy, stress; Ethylene — fruit ripening.
    What is the difference between gymnosperms and angiosperms?
    Gymnosperms have naked seeds (not enclosed in fruit) — e.g., Pine, Cycas, Deodar. Angiosperms are flowering plants with seeds enclosed inside fruits — e.g., Mango, Wheat, Rose. Angiosperms are the most evolved plant group.