चिकित्सा शिक्षा आयोग (CEE) बीडीएस प्रवेश परीक्षा तयारी
चिकित्सा शिक्षा आयोग (CEE) – बीडीएस प्रवेश परीक्षा
CEE – BDS 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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Which of the following statements accurately describes Avogadro’s hypothesis?
सही उत्तर: क) Equal volumes of all gases, at the same temperature and pressure, contain an equal number of molecules
Avogadro’s hypothesis states that equal volumes of different gases contain the same number of molecules when measured under identical conditions (temperature and pressure). Option 1 is the correct explanation. Options 2, 3, and 4 are incorrect descriptions of atomic structure or mass.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If ‘APPLE’ is coded as ‘PPL’, what is the code for ‘BANANA’?
सही उत्तर: क) NNA
The coding involves removing consecutive identical letters from the word. Applying this to BANANA, we remove A's and B's to give NA. The answer is therefore NNBA.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Consider the series: A1, B3, C5, D7, ?
सही उत्तर: क) F9
This is a series where each term consists of a letter followed by an odd number. The letters are in alphabetical order (A, B, C, D,...), and the numbers are consecutive odd integers (1, 3, 5, 7,...). Thus, the next term is E9.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a certain code, the letter ‘A’ is replaced by 1, ‘B’ is replaced by 2, ‘C’ is replaced by 3 and so on. If the word ‘EDUCATION’ is coded as ‘76845231’, what is the code for the word ‘SCIENCE’?
सही उत्तर: क) 89035672
The code uses a simple substitution cipher where each letter of the alphabet is assigned a number. EDUCATION translates to E(5), D(4), U(26), C(3), A(1), T(20), I(9), O(15) N(14). The given coded word ‘76845231’ corresponds to this mapping, so SCIENCE becomes S(19), C(3), I(9), E(5), N(14),C(3),E(5) which translates to 193951435. Option A is incorrect because of the numerical assignments. Option B and C are incorrect as they do not follow this straightforward substitution.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The presence of specialized cells within the mammalian kidney plays a vital role in regulating blood pressure. Which type of cell is MOST directly involved in generating the countercurrent multiplier system, critical for efficient water reabsorption?
सही उत्तर: घ) D. Henle’s loop capillaries
The collecting ducts of the nephron are responsible for generating the countercurrent multiplier system through vasa recta which is vital for water reabsorption, thus regulating blood volume and pressure. The other options are involved in different aspects of urine formation but don't perform this critical function.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of peristalsis in the alimentary canal involves rhythmic contractions that propel food along. Which tissue type primarily mediates this action?
सही उत्तर: ग) C. Cardiac muscle tissue
Peristalsis relies on the wave-like contraction of smooth muscles found in the walls of the digestive tract. These muscles don't have a central nervous system control like cardiac muscle. Simple squamous epithelium is for absorption and nervous tissue does not directly perform peristaltic movements.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the volume of 0.5 M NaOH solution required to completely neutralize 100 mL of 0.2 M H₂SO₄ solution?
सही उत्तर: ग) 200 mL
The correct answer (100 mL) is calculated using the stoichiometry of the neutralization reaction between NaOH and H₂SO₄. Since 1 mole of NaOH neutralizes 1 mole of H₂SO₄, the volume required will be proportional to the number of moles.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The ‘foolish seedling’ (bakanae) disease in rice was first observed and studied due to the discovery of: (A) A bacterial pathogen (B) Fungal hyphae within the developing embryo (C) Viral infection of the root system (D) Parasitic nematode infestation
सही उत्तर: ग) (C) Viral infection of the root system
The bakanae disease is caused by the fungus *Fusarium oxysporum*, which invades the rice embryo and disrupts development. The presence of fungal hyphae was the key discovery.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The pressure flow hypothesis of translocation in phloem explains movement through a process involving: (A) Active transport of sugars directly into sieve tubes. (B) Osmotic pressure gradient driving the movement of fluids containing sugars. (C) Bulk flow of water moving along concentration gradients. (D) Capillary action drawing sugars up the xylem vessels.
सही उत्तर: ग) (C) Bulk flow of water moving along concentration gradients.
The pressure flow hypothesis posits that a high pressure created by sugar loading into phloem siphons sugars to areas of higher demand, driven by osmotic pressure changes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The characteristic red coloration of ripe tomatoes and carrots arises from pigments belonging to which group? (A) Chlorophylls (B) Carotenoids (C) Anthocyanins (D) Phycobilins
सही उत्तर: ग) (C) Anthocyanins
Carotenoids, specifically beta-carotene and lycopene, are responsible for the red and orange colors in tomatoes and carrots. Chlorophylls are green pigments.
💬 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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