चिकित्सा शिक्षा आयोग (CEE) पारामेडिकल (B.Pharm, BPH, BMLT, BMIT, B.Optom) तयारी
चिकित्सा शिक्षा आयोग (CEE) – पारामेडिकल (B.Pharm, BPH, BMLT, BMIT, B.Optom)
Paramedical Bachelor Entrance · Medical Education Commission – CEE
२,०३९ प्रश्न उपलब्ध। मोड छान्नुहोस्:
MBBS/BDS/Nursing प्रवेश: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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In rice and wheat, pollen grains lose their viability within about:
सही उत्तर: घ) 30 minutes of release
Pollen of rice and wheat stays viable for only about 30 minutes, whereas pollen of some members of Rosaceae, Leguminosae and Solanaceae remains viable for months.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The hard outer layer (exine) of the pollen grain is made of:
सही उत्तर: ग) sporopollenin
Sporopollenin is one of the most resistant organic materials known; it withstands high temperature, strong acids and alkalis, which is why pollen fossils survive.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The innermost wall layer of the microsporangium (anther), which nourishes the developing pollen grains, is the:
सही उत्तर: घ) tapetum
Tapetal cells have dense cytoplasm and often more than one nucleus; they nourish the developing microspores.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The instrument used to measure the rate of growth in length of a plant stem is the:
सही उत्तर: घ) auxanometer
An arc auxanometer magnifies the small increase in stem length so it can be measured; a potometer measures water uptake (transpiration).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In the brewing industry, gibberellins are applied to barley grains to:
सही उत्तर: घ) speed up the malting process
Gibberellins stimulate the aleurone layer to make α-amylase, speeding up starch breakdown during malting.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is a long-day plant that flowers when the daily light period exceeds a critical length?
सही उत्तर: ग) Wheat
Wheat, radish and spinach are long-day plants; Xanthium, soybean and chrysanthemum are short-day plants.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The plant hormone that induces and maintains dormancy in seeds and buds is:
सही उत्तर: ख) abscisic acid
ABA promotes seed and bud dormancy, helping seeds survive dry or cold periods; gibberellins break dormancy.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Zeatin, a naturally occurring cytokinin, was isolated from:
सही उत्तर: ख) corn (maize) kernels and coconut milk
Natural cytokinin-like activity was found in maize kernels and coconut milk (zeatin); kinetin came from autoclaved herring sperm DNA and auxin was first isolated from human urine.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Ethephon, widely used in agriculture to hasten fruit ripening, acts by:
सही उत्तर: घ) releasing ethylene
Ethephon is absorbed by the plant and slowly releases ethylene, which promotes ripening, flowering in pineapple and abscission.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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When an organic acid such as malic acid is the respiratory substrate, the respiratory quotient (RQ) is:
सही उत्तर: घ) more than 1 (about 1.33)
C₄H₆O₅ + 3O₂ → 4CO₂ + 3H₂O; RQ = 4/3 ≈ 1.33. Oxygen-rich substrates give RQ above 1.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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