चिकित्सा शिक्षा आयोग (CEE) बीएस्सी नर्सिङ र बीएनएस प्रवेश तयारी
चिकित्सा शिक्षा आयोग (CEE) – बीएस्सी नर्सिङ र बीएनएस प्रवेश
B.Sc. Nursing & BNS 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
-
A man has two sons. Each son has one daughter. Therefore the man has three daughters. This statement is an example of:
सही उत्तर: ग) Abduction
The statement uses a plausible, but ultimately incorrect, leap in logic. The premise (two sons, each with a daughter) leads to the conclusion (three daughters), even though it’s not logically sound. This is characteristic of abduction – reasoning to the best explanation given the evidence, which is potentially flawed.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which of the following processes contributes most significantly to the maintenance of a stable internal environment in mammals? (a) Active transport of nutrients into cells. (b) The process of transpiration in plants. (c) Homeostasis through feedback mechanisms involving hormones and regulatory systems. (d) The decomposition of organic matter by fungi.
सही उत्तर: ग) Homeostasis through feedback mechanisms involving hormones and regulatory systems.
Homeostasis is the ability to maintain a relatively stable internal environment (temperature, pH, blood glucose levels etc.) within an organism. This is achieved primarily through negative feedback loops utilizing hormones and other regulatory mechanisms – constantly adjusting conditions based on deviations from set points. Options (a) and (d) are related to specific cellular processes, while option (b) describes transpiration, a process in plants.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The process of exocytosis, which involves the fusion of vesicles with the plasma membrane, is most closely associated with: (a) Cellular waste removal. (b) The release of neurotransmitters at synapses. (c) The absorption of nutrients from the surrounding environment. (d) Maintaining cellular structural integrity.
सही उत्तर: ख) The release of neurotransmitters at synapses.
Exocytosis is a crucial process for intercellular communication, specifically releasing signaling molecules like neurotransmitters and hormones. This happens when vesicles containing these substances fuse with the cell membrane, allowing them to be released outside the cell. Option (a) describes phagocytosis; option (c) relates to endocytosis; and option (d) is related to maintaining cell shape.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which of the following best describes the function of the myelin sheath surrounding nerve fibers? (a) To provide structural support for the neuron. (b) To increase the rate of nerve impulse transmission. (c) To regulate the concentration of ions across the neuronal membrane. (d) To provide nutrients to the neuron.
सही उत्तर: ख) To increase the rate of nerve impulse transmission.
The myelin sheath, formed by glial cells (Schwann cells in the peripheral nervous system and oligodendrocytes in the central nervous system), acts as an insulator around nerve fibers, allowing for saltatory conduction – a rapid transmission of nerve impulses. This dramatically increases the speed compared to unmyelinated neurons. Option (a) is incorrect; option (c) describes ion regulation; and option (d) relates to nutrient transport.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The primary function of erythrocytes (red blood cells) in mammals is: (a) To transport oxygen throughout the body. (b) To initiate blood clotting during injury. (c) To defend the body against foreign pathogens. (d) To maintain constant body temperature.
सही उत्तर: क) To transport oxygen throughout the body.
Erythrocytes are specialized for carrying oxygen. Their large surface area and hemoglobin content facilitate efficient oxygen uptake in the lungs and delivery throughout the tissues. Option (b) describes the function of platelets; option (c) is the role of leukocytes (white blood cells); and option (d) relates to thermoregulation.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The apparent temperature felt by a person standing near a hot object is always greater than the actual temperature of the object if the object is:
सही उत्तर: ख) Hot
This phenomenon, known as Newton’s Law of Cooling, states that the rate at which an object loses heat to its surroundings is proportional to the difference between its temperature and the surrounding temperature. Therefore, if the object is hot, it will feel hotter than the actual temperature.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
A car moving with constant acceleration covers a distance of 10 meters in 2 seconds. If the initial velocity is 2 m/s, what is the acceleration?
सही उत्तर: ग) 3 m/s²
Using the equation s = ut + (1/2)at², where s=10m, u=2m/s, a is the unknown acceleration, and t=2s. Solving for 'a' gives: 10 = 2*2 + (1/2)a*2² => 10 = 4 + 2a => 6 = 2a => a = 3 m/s².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
A body slides down an inclined plane of length L and height h with uniform acceleration. Taking g as the acceleration due to gravity, which of the following statements regarding its motion is correct?
सही उत्तर: ख) Its acceleration is proportional to sin(θ) where θ is the angle of inclination
The body's uniform acceleration down the incline results from the net force being equal to ma. This force is due to gravity (mgsin(θ)) and the frictional force, where sin(θ) represents the angle of inclination relative to the horizontal. The other options present incorrect interpretations of motion on an inclined plane.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
The symbiotic association between certain plant roots and fungi, known as mycorrhizae, is primarily beneficial for which aspect of the plant’s survival?
सही उत्तर: ख) B) Increasing the root surface area for enhanced water and nutrient absorption.
Mycorrhizal fungi extend hyphae into the soil, dramatically increasing the root's absorptive surface area. This allows for far more efficient uptake of water and minerals (especially phosphorus) from the soil – a key benefit for plant growth. Option A describes nitrogen fixation, C relates to defence mechanisms, and D refers to a general growth promotion.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
-
Which cellular compartment plays a critical role in the initial steps of photorespiration when RuBisCO fixes oxygen instead of carbon dioxide?
सही उत्तर: ग) C) The chloroplast stroma.
Photorespiration primarily occurs within the chloroplast stroma. When RuBisCO catalyzes a reaction with oxygen instead of carbon dioxide, it triggers a series of enzymatic reactions that require involvement of enzymes residing in the stroma to recycle the products back into usable compounds. The other options represent distinct organelles with different primary functions.
💬 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।
AI ले गल्ती गर्न सक्छ। महत्वपूर्ण कुरा आधिकारिक स्रोतमा जाँच्नुहोस्।