आधारभूत विज्ञान (Anatomy, Physiology, Biochemistry) – Basic Sciences MCQ
आधारभूत विज्ञान (Anatomy, Physiology, Biochemistry) – MD/MS प्रवेश
Basic Sciences · MECEE-PG – MD/MS/MDS Entrance · ४३३ प्रश्न
४३३ प्रश्न उपलब्ध। मोड छान्नुहोस्:
आधारभूत विज्ञान (Anatomy, Physiology, Biochemistry): 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 primary function of the myelin sheath surrounding nerve fibers is to:
सही उत्तर: क) Increase the rate of nerve impulse conduction.
Myelin sheaths insulate nerve axons, significantly increasing the speed of action potential propagation due to saltatory conduction. The other options represent incorrect functions.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following hormones plays a crucial role in maintaining calcium homeostasis?
सही उत्तर: ग) Parathyroid Hormone (PTH)
Parathyroid hormone (PTH) is primarily responsible for increasing blood calcium levels. Insulin, glucagon, and cortisol have roles in glucose regulation and stress responses, respectively, but not direct calcium homeostasis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements best describes the role of the sarcomere in muscle contraction?
सही उत्तर: ख) It is the basic structural and functional unit of a muscle fiber, containing myofibrils composed of actin and myosin filaments.
The sarcomere, consisting of actin and myosin filaments, is the fundamental building block of muscle contraction. The other options describe ATP production, extracellular fluid, or muscle tone – but none accurately define the structure responsible for force generation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Km value of an enzyme reflects its affinity for which substance?
सही उत्तर: क) Substrate concentration
Km (Michaelis-Menten constant) represents the substrate concentration at which the reaction rate is half of Vmax. The other options represent different components involved in enzymatic reactions, but Km specifically relates to the enzyme's binding affinity for its substrate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements regarding the primary function of erythrocytes is MOST accurate?
सही उत्तर: क) They primarily transport oxygen through hemoglobin
Erythrocytes (red blood cells) are specialized for oxygen transport. Hemoglobin is the key protein responsible for binding and carrying oxygen. The other options describe functions of other cell types – platelets, smooth muscle, and leukocytes respectively.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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2072 मा ‘टेलेमेर्स’ (Telomerase) कस्तो हुन्छ? (In 2072, what is ‘Telomerase’?)
सही उत्तर: ख) B. एक प्रकारको भिटामिन (A type of vitamin)
’टेलेमेर्स’ (Telomerase) एक प्रकारको एन्जाइम (A type of enzyme) हो, जसले डीएनएको टेललाई बढाउँछ। (‘Telomerase’ is a type of enzyme that increases the tail of DNA.)
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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2072 मा ‘ओक्केजाकी फ्रेग्मेन्ट’ (Okazaki Fragments) कहिले देखिएका हुन्छन्? (In 2072, when do ‘Okazaki Fragments’ appear?)
सही उत्तर: ख) B. जब डीएनएको विभाजन हुन्छ (When DNA is divided)
’ओक्केजाकी फ्रेग्मेन्ट’ (Okazaki Fragments) जब डीएनएको नयाँ भाग बनाइन्छ (When a new part of DNA is being made) कहिले देखिएका हुन्छन्। (‘Okazaki Fragments’ appear when a new part of DNA is being made.)
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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2072 मा ‘फनी करेन्ट’ (If) कस्तो भूमिका खेल्छ? (In 2072, what role does ‘Funny Current’ (If) play?)
सही उत्तर: ग) C. दिसा प्रणालीमा अम्ल उत्पादनलाई बढाउँछ (Increases acid production in the digestive system)
’फनी करेन्ट’ (If) हृदयको ताललाई नियमित पार्छ। (‘Funny Current’ (If) regularizes the heart rate.)
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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2072 मा ‘इन्टेंशन्स ट्रिमर’ (Intention Tremor) कति अवस्थामा देखिएको हुन्छ? (In 2072, when does ‘Intention Tremor’ appear?)
सही उत्तर: ग) C. पेटको रोगमा (In stomach disease)
’इन्टेंशन्स ट्रिमर’ (Intention Tremor) मस्तिष्कको चोटपछि (After brain injury) देखिएको हुन्छ। (‘Intention Tremor’ appears after brain injury.)
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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2072 मा ‘ट्रेंडेलबर्ग चिन्ह’ (Trendelenburg Sign) के देखाउँछ? (In 2072, what does ‘Trendelenburg Sign’ show?)
सही उत्तर: घ) D. कपालको कमजोरी (Weakness of the head)
’ट्रेंडेलबर्ग चिन्ह’ (Trendelenburg Sign) पेटमा रक्तचापको कमी (Low blood pressure in the abdomen) देखाउँछ। (‘Trendelenburg Sign’ shows low blood pressure in the abdomen.)
💬 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।
नमस्ते! पाठ्यक्रम, सामान्य ज्ञान, भाषा परीक्षा वा कुनै प्रश्नको उत्तर बुझ्न सोध्नुहोस्।
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