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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The process of metamorphosis observed in amphibians, such as tadpoles transforming into frogs, primarily involves changes in which layer of tissues?
सही उत्तर: ख) B) Mesoderm – Responsible for limb development and organ formation.
Metamorphosis in amphibians is driven by dramatic changes within the mesoderm. This layer undergoes extensive proliferation and differentiation, leading to the formation of limbs, a new circulatory system, and other adult structures. Options A, C, and D relate to different developmental layers but don't explain the core process of amphibian metamorphosis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If A means ‘+’, B means ‘×’, C means ‘-’ and D means ‘÷’, what is the value of BCDA if A=3, B=4, C=1, D=2?
सही उत्तर: घ) 39
Following the given rules: BCDA = (4 × 1) - (3 + 2) = 4 - 5 = -1. There seems to be an error in the options, let’s verify again. BCDA = (4 * 1) – (3 + 2) = 4-5 = -1; However this is not available as a choice.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a Mental Agility Test, you are given the sequence: 1, 4, 9, 16, ? What number should complete this series?
सही उत्तर: क) 25
This is the sequence of perfect squares. The next term is 5 squared (5*5 = 25).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In *Taenia solium*, the male tapeworm is distinguished from the female based on its lack of a __________.
सही उत्तर: क) oviduct
The correct answer is ‘penis’. Male *Taenia solium* lacks a specialized organ for delivering sperm to the egg. The other options (oviduct, scolex, and testes) are all reproductive structures found in the female tapeworm or the entire organism, not specifically differentiating the male.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The term ‘alternation of generations’ in plant life cycles refers to: (a) A sudden shift in the plant's developmental pathway due to environmental changes. (b) The cyclical transition between a haploid, unicellular stage (spore) and a diploid, multicellular stage (gametophyte). (c) A process where plants alternate between photosynthetic and non-photosynthetic phases. (d) A genetically programmed sequence of events controlling plant growth from seed to maturity.
सही उत्तर: ख) The cyclical transition between a haploid, unicellular stage (spore) and a diploid, multicellular stage (gametophyte).
The alternation of generations is the hallmark feature of all vascular plants, cycling through a haploid (spore) phase and a diploid (gametophyte) phase. Option (a) describes environmental adaptation; (c) an incorrect general statement.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following correctly identifies the role of abscisic acid (ABA) in plant physiology? (a) It stimulates rapid cell division and promotes fruit development. (b) It triggers stomatal closure during water stress conditions. (c) It enhances chlorophyll production, increasing photosynthetic rates. (d) It plays a critical role in the formation of new root tips.
सही उत्तर: ख) It triggers stomatal closure during water stress conditions.
ABA is a stress hormone that regulates responses to drought by causing stomatal closure - thereby reducing water loss. Option (a) describes auxins’ function; (c) relates to chlorophyll synthesis; and (d) to root development.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of transpiration in plants primarily involves: (a) The absorption of nutrients from the soil by root hairs. (b) The movement of water and dissolved minerals upwards through the xylem vessels. (c) The release of oxygen into the atmosphere during photosynthesis. (d) The uptake of carbon dioxide from the environment for use in cellular respiration.
सही उत्तर: ख) The movement of water and dissolved minerals upwards through the xylem vessels.
Transpiration is driven by evaporation from mesophyll cell surfaces leading to tension that pulls water up the stem. Option (a) describes nutrient absorption; (c) relates to photosynthesis; and (d) to respiration.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements accurately describes the significance of CAM photosynthesis in arid environments? (a) It relies on a high rate of carbon dioxide fixation for rapid growth. (b) It maximizes water use efficiency by minimizing CO2 uptake during the day. (c) It is less energy-efficient than C3 photosynthesis due to the complexity of its pathways. (d) It exclusively occurs in plants with large, broad leaves.
सही उत्तर: ख) It maximizes water use efficiency by minimizing CO2 uptake during the day.
CAM (Crassulaceae Acid Metabolism) photosynthesis evolved in drought conditions, utilizing a modified CO2 uptake strategy to minimize water loss from the stomata during daylight hours - hence maximizing water use efficiency. Option (a) describes C3 photosynthesis. Option (c) is incorrect as CAM *is* more efficient in arid climates.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The primary function of phloem in plants is to: (a) Transport water and minerals upwards from roots. (b) Translocate sugars produced during photosynthesis to other parts of the plant. (c) Provide structural support to the stem and leaves. (d) Facilitate gas exchange between the atmosphere and the leaf tissues.
सही उत्तर: ख) Translocate sugars produced during photosynthesis to other parts of the plant.
Phloem is responsible for transporting organic nutrients (primarily sucrose) throughout the plant. Option (a) describes xylem's function. Option (c) describes support structures like lignin. Option (d) refers to stomata and lenticels.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements regarding carbonates of Group 2 metals is most accurate? (a) Calcium carbonate (CaCO₃) is the least thermally stable due to its larger size. (b) Magnesium carbonate (MgCO₃) exhibits higher thermal stability compared to barium carbonate (BaCO₃). (c) The thermal stability of all carbonates of Group 2 metals is generally high due to strong lattice energies. (d) Sodium carbonate (Na₂CO₃) possesses the highest thermal stability owing to its ionic nature.
सही उत्तर: ख) (b)
The correct answer is (b). Magnesium carbonate (MgCO₃) has a smaller ionic radius and stronger electrostatic forces compared to barium carbonate (BaCO₃), leading to higher lattice energy and increased thermal stability. Option (a) is incorrect because calcium carbonate’s larger size actually *decreases* its stability. Options (c) and (d) are too general; the relative stability depends on specific ion sizes.
💬 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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