चिकित्सा शिक्षा आयोग (CEE) आयुर्वेद र होमियोप्याथी (BAMS) तयारी
चिकित्सा शिक्षा आयोग (CEE) – आयुर्वेद र होमियोप्याथी (BAMS)
BAMS 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 structures is MOST directly involved in the process of photosynthesis? (a) Stomata (b) Phloem (c) Chloroplast (d) Epidermis
सही उत्तर: ग) (c) Chloroplast
The chloroplast is the organelle within plant cells where photosynthesis takes place, housing chlorophyll and other pigments that capture light energy. Stomata regulate gas exchange, phloem transports nutrients, and the epidermis forms the outer layer of the leaf.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The process of pollination in flowering plants can be primarily categorized into which two main types? (a) Vegetative and asexual reproduction (b) Self-pollination and cross-pollination (c) Conduction and absorption (d) Mitosis and meiosis
सही उत्तर: ख) (b) Self-pollination and cross-pollination
Pollination is differentiated by whether pollen reaches the stigma of the same or a different flower. Self-pollination occurs within the same plant, while cross-pollination involves transferring pollen from one plant to another. (a), (c), and (d) represent unrelated biological processes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements best describes the function of xylem in vascular plants? (a) Transporting sugars from leaves to roots (b) Conducting water and minerals upwards from the roots to the rest of the plant (c) Absorbing carbon dioxide for photosynthesis (d) Providing structural support to the stem
सही उत्तर: ख) (b) Conducting water and minerals upwards from the roots to the rest of the plant
Xylem vessels are specialized tissues designed to transport water and dissolved mineral nutrients from the root system up throughout the plant. Options (a), (c), and (d) describe different processes, whilst (b) is the correct function of xylem.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The primary function of cutin in plant epidermis is to: (a) Facilitate gas exchange (b) Prevent water loss (c) Absorb sunlight (d) Provide structural support
सही उत्तर: ख) (b) Prevent water loss
Cutin is a waxy substance that forms the outermost layer of the epidermis, primarily acting as a barrier to reduce water evaporation from the plant. Options (a), (c), and (d) represent other functions or processes within plants, while (b) accurately describes the primary role of cutin.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The molar mass of CO₂ is 44 g/mol. If you have 33 grams of CO₂, how many moles are present?
सही उत्तर: ख) 1 mol
Moles = Mass / Molar mass. Therefore, moles = 33 g / 44 g/mol = 0.75 mol. Option 2 is correct because it uses the correct calculation. Option 3 is incorrect as its value is too large and option 4 is completely wrong.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following compounds will give a positive Tollens' reagent test (silver mirror)?
सही उत्तर: क) Ethane
A positive Tollens’ reagent test indicates the presence of an aldehyde. Ethanol (C₂H₅OH) is an alcohol and does not react; Ethane and Dimethyl ether are alkanes. Ethene undergoes oxidation in basic solution forming a carbon dioxide that reacts with silver ions to form a silver mirror, resulting in a positive Tollens’ reagent test. Therefore, the correct answer is Ethanol.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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One mole of electrons carries a charge of approximately 96,485 Coulombs (F = 96,485 C/mol). What is the equivalent mass (in grams) of one mole of electrons?
सही उत्तर: क) 0.5 g
Equivalent mass = Charge / Voltage. In this case, the charge is 96,485 C and the voltage (potential difference) is defined by one mole of electrons. Therefore, equivalent mass = 96,485 C / 96,485 C/mol = 1 g. Option 2 is wrong as it contains incorrect numerical values, options 3 and 4 are irrelevant.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A gas occupies a volume of 5L at room temperature (298K) and pressure of 1 atm. If the pressure is increased to 2 atm while maintaining the same temperature, what will be the new volume? (Assume ideal gas behavior)
सही उत्तर: क) 2.5 L
According to Boyle's Law (at constant temperature), P₁V₁ = P₂V₂. Therefore, V₂ = (P₁V₁) / P₂ = (1 atm * 5L) / 2 atm = 2.5 L. Option 2 is incorrect as it keeps the volume the same and doesn’t apply Boyle's Law. Options 3 and 4 are much larger increases than expected.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The rate law for the reaction 2NO(g) + O₂(g) → 2NO₂(g) is found to be Rate = k[NO]²[O₂]. What is the overall order of this reaction?
सही उत्तर: क) 1
The rate law has the form Rate = k[NO]²[O₂], where the exponents are the orders. The overall order is 2 + 1 = 3. Option 1 is incorrect because it doesn't account for the exponents. Option 2 is incorrect as it doesn’t match the observed rate law. Option 3 is correct, and option 4 is an irrelevant constant.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A man has three sons. The eldest son is older than the youngest son by six years. The middle son is twice as old as the youngest son. If the youngest son is 5 years old, how old is the eldest son?
सही उत्तर: क) 11
The youngest son is 5 years old. The middle son is twice the age of the youngest, so he is 2 * 5 = 10 years old. The eldest son is six years older than the youngest, making him 5 + 6 = 11 years old. This is the correct solution.
💬 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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