मेडिकल प्रवेश (CEE) – Physics, Chemistry, Zoology, Botany, MAT
मेडिकल प्रवेश (CEE) – Physics, Chemistry, Zoology, Botany, MAT
Medical Entrance (CEE) – Physics, Chemistry, Biology & MAT · २,०३९ प्रश्न
२,०३९ प्रश्न उपलब्ध। मोड छान्नुहोस्:
CEE 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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The coralloid roots of Cycas are associated with:
सही उत्तर: ग) Cyanobacteria (e.g. Anabaena)
Coralloid roots of Cycas harbour nitrogen-fixing cyanobacteria. Mycorrhizal fungi are associated with the roots of Pinus, not the coralloid roots of Cycas.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following pteridophytes is heterosporous?
सही उत्तर: क) Selaginella
Selaginella and Salvinia produce two kinds of spores (microspores and megaspores). Lycopodium is homosporous, producing only one type of spore.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The first terrestrial plants to possess vascular tissues (xylem and phloem) are:
सही उत्तर: घ) Pteridophytes
Pteridophytes are the first land plants with true vascular tissues. Bryophytes live on land but lack xylem and phloem.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In bryophytes, the dominant phase of the life cycle is the:
सही उत्तर: ख) Haploid gametophyte
The main plant body of bryophytes is the haploid gametophyte; the sporophyte is dependent on it. In pteridophytes the sporophyte becomes dominant.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The stored food in red algae (Rhodophyceae) is:
सही उत्तर: घ) Floridean starch
Red algae store floridean starch, which is similar to amylopectin and glycogen in structure. Laminarin (with mannitol) is the reserve food of brown algae.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Agar, used in culture media, is commercially obtained from:
सही उत्तर: ग) Gelidium
Agar is extracted from red algae such as Gelidium and Gracilaria. Laminaria is a brown alga, a source of algin rather than agar.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which pigment acts as the primary photosynthetic pigment at the reaction centre?
सही उत्तर: ग) Chlorophyll a
Chlorophyll a forms the reaction centres (P680, P700) of both photosystems. Chlorophyll b, carotenoids and xanthophylls are accessory pigments that pass energy to chlorophyll a.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The cell wall of most fungi is mainly composed of:
सही उत्तर: क) Chitin
Fungal cell walls are made of chitin and polysaccharides. Peptidoglycan is the wall material of bacteria, while cellulose is typical of plant cell walls.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Archaeopteryx is regarded as a connecting link between:
सही उत्तर: ख) Reptiles and birds
Archaeopteryx had feathers and wings like birds, and teeth, claws and a long bony tail like reptiles. The lungfish is considered a link between fishes and amphibians.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is a vestigial organ in humans?
सही उत्तर: क) Vermiform appendix
The vermiform appendix is a reduced remnant of the caecum used for cellulose digestion in herbivores. The pancreas is a fully functional gland.
💬 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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