जीव विज्ञान – Zoology – Zoology MCQ
जीव विज्ञान – Zoology – CEE प्रवेश
Zoology · Medical Entrance (CEE) – Physics, Chemistry, Biology & MAT · ४०८ प्रश्न
४०८ प्रश्न उपलब्ध। मोड छान्नुहोस्:
जीव विज्ञान – Zoology: 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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Brunner's glands, which secrete an alkaline mucus, are located in the submucosa of the:
सही उत्तर: क) duodenum
Brunner's (duodenal) glands in the duodenal submucosa secrete alkaline mucus that protects the duodenum from acidic chyme.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The type of cell junction that prevents substances from leaking between adjacent epithelial cells is the:
सही उत्तर: क) tight junction
Tight junctions seal neighbouring cell membranes together; gap junctions allow passage of ions and small molecules between cells.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Goblet cells found in the lining of the intestine and respiratory tract secrete:
सही उत्तर: ख) mucus
Goblet cells are unicellular glands of columnar epithelium that secrete mucus for lubrication and protection.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Haversian systems, with concentric lamellae around a central canal, are characteristic of:
सही उत्तर: क) compact bone of mammals
The Haversian system (osteon) is the structural unit of mammalian compact bone; the central canal carries blood vessels and nerves.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In cartilage, the cells (chondrocytes) are found:
सही उत्तर: घ) in small cavities called lacunae within the matrix
Chondrocytes lie singly or in groups inside lacunae enclosed by the firm cartilage matrix.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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With respect to nitrogenous waste, the adult frog is:
सही उत्तर: ग) ureotelic
The aquatic tadpole excretes ammonia, but the adult frog excretes mainly urea and is ureotelic.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The heart of an adult frog has:
सही उत्तर: ख) two atria and one ventricle
The frog has a three-chambered heart with two auricles and one ventricle, plus a sinus venosus and truncus arteriosus.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The typhlosole, a median fold in the intestine of the earthworm, serves to:
सही उत्तर: घ) increase the area for absorption
The typhlosole is an internal dorsal fold of the intestine that increases the effective absorptive surface.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The blood (haemolymph) of the cockroach is colourless because it:
सही उत्तर: ग) lacks any respiratory pigment
Cockroach haemolymph has no haemoglobin; oxygen is carried directly to tissues by the tracheal system.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Limulus, the king crab, often called a 'living fossil', belongs to the phylum:
सही उत्तर: घ) Arthropoda
Limulus is a marine arthropod (class Merostomata) that has changed little over hundreds of millions of years.
💬 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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