Upsc prelims MCQ
📈 Telegram kanali Upsc prelims MCQ analitikasi
Upsc prelims MCQ (@upsc_prelims_test_mcq) Ingliz til segmentidagi kanali faol ishtirokchi. Hozirda hamjamiyat 49 975 obunachidan iborat bo'lib, Taʼlim toifasida 3 471-o'rinni va Hindiston mintaqasida 7 151-o'rinni egallagan.
📊 Auditoriya ko‘rsatkichlari va dinamika
невідомо sanasidan buyon loyiha tez o‘sib, 49 975 obunachiga ega bo‘ldi.
05 Sentabr, 2026 dagi oxirgi ma’lumotlarga ko‘ra kanal barqaror faollikka ega. Oxirgi 30 kunda obunachilar soni -771 ga, so‘nggi 24 soatda esa -19 ga o‘zgardi va umumiy qamrov yuqori darajada qolmoqda.
- Tasdiqlash holati: Tasdiqlanmagan
- Jalb etish (ER): Auditoriya o‘rtacha 0.66% darajada jalb etiladi. Nashrdan keyingi dastlabki 24 soatda kontent odatda umumiy obunachilar sonining 0.33% ini tashkil etuvchi reaksiyalarni to‘playdi.
- Post qamrovi: Har bir post o‘rtacha 329 marta ko‘riladi; birinchi sutkada odatda 167 ta ko‘rish yig‘iladi.
- Reaksiyalar va o‘zaro ta’sir: Auditoriya faol: har bir postga o‘rtacha 1 ta reaksiya keladi.
- Tematik yo‘nalishlar: Kontent prelim, statement, upsc, peak, topper kabi asosiy mavzularga jamlangan.
📝 Tavsif va kontent siyosati
Kanal uchun tavsif kiritilmagan.
Yuqori yangilanish chastotasi (oxirgi ma’lumot 06 Sentabr, 2026 da olingan) sababli kanal doimo dolzarb va katta qamrovli bo‘lib qoladi. Analitika auditoriya kontent bilan faol hamkorlik qilishini, uni Taʼlim toifasidagi muhim ta’sir nuqtasiga aylantirishini ko‘rsatadi.
Ma'lumot yuklanmoqda...
| Sana | Obunachilarni jalb qilish | Esdaliklar | Kanallar | |
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| 2 | Which ecological phenomenon directly triggers the breeding cycles of the Critically Endangered Kākāpō in New Zealand? | 191 |
| 3 | In which region was the new scorpion species, Liocheles gracilipalpus, belonging to the family Hormuridae, discovered? | 181 |
| 4 | +1 Sample Page | 160 |
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| 9 | Which one of the following pairs is not correctly matched? | 293 |
| 10 | Explanation: Wilson's disease is a rare genetic disorder where the body cannot eliminate excess Copper, leading to its toxic accumulation in vital organs like the liver, brain, and eyes (forming Kayser-Fleischer rings).
Option (A) Magnesium: Excess magnesium (Hypermagnesemia) is rare but can cause low blood pressure and respiratory distress; deficiency causes muscle cramps.
Option (B) Potassium: Imbalances lead to Hyperkalemia (high potassium) or Hypokalemia (low potassium), both of which severely affect heart rhythms.
Option (D) Sodium: High levels lead to Hypernatremia (often causing high blood pressure), while low levels cause Hyponatremia (leading to cellular swelling and confusion). | 281 |
| 11 | Options | 249 |
| 12 | Q42
Wilson's disease is an inherited disorder characterized by the excessive accumulation of which mineral in the body's tissues?
(A) Magnesium
(B) Potassium
(C) Copper
(D) Sodium | 234 |
| 13 | Answer: D. B-complex and vitamin C
This is a fundamental, high-yield classification concept in biology and medical biochemistry. Top students isolate and choose the water-soluble group within 5 seconds by utilizing the standard "ADEK" exclusion rule.
Why Option D is the Correct Choice:
Vitamins are chemically classified into two distinct groups based on their solubility profile:
• Water-Soluble Vitamins: This group includes all of the B-complex vitamins (such as B1, B2, B3, B5, B6, B7, B9, B12) and Vitamin C. Because they dissolve freely in water, they are readily absorbed into the bloodstream, cannot be easily stored by the body in large quantities (with the unique exception of B12 in the liver), and any excess is excreted via urine.
• Fat-Soluble Vitamins: These are Vitamins A, D, E, and K (often memorised using the acronym ADEK). They dissolve in lipids, require dietary fats for proper absorption in the small intestine, and can accumulate inside the body's fatty tissues and liver, potentially causing toxicity if taken in extreme excess.
Breakdown of Other Options:
• A. A, E and C: Incorrect because Vitamins A and E are fat-soluble.
• B. A, D and K: Incorrect because all three of these (A, D, and K) are fat-soluble.
• C. D, E and B12: Incorrect because Vitamins D and E are fat-soluble, even though B12 is water-soluble. | 216 |
| 14 | Code | 169 |
| 15 | Q14
Which combination contains only water-soluble vitamins?
A. A, E and C
B. A, D and K
C. D, E and B12
D. B-complex and vitamin C
E. None of the above | 170 |
| 16 | Answer: C. Intestinal calcium absorption
This question tests your core understanding of hormone-regulated mineral homeostasis. Top-tier students lock this answer in within 5 seconds by linking Vitamin D directly to its classic target organ system.
Why Intestinal Calcium Absorption is the Correct Choice:
• The Active Form: Active Vitamin D, known as calcitriol [1,25(OH)₂D], acts like a steroid hormone in the body.
• Mechanism of Action: It diffuses into the epithelial cells lining the small intestine and binds to the intracellular Vitamin D Receptor (VDR). This complex acts as a transcription factor in the nucleus, upregulating the gene expression of calbindin (a calcium-binding transport protein) and specific calcium channels.
• The Physiological Goal: Without adequate Vitamin D, the active transport of calcium across the intestinal mucosa drops precipitously. This leads to a systemic failure to absorb dietary calcium, causing the body to strip calcium from the bones instead, resulting in Rickets in children and Osteomalacia in adults.
Breakdown of Other Options:
• A. Synthesis of clotting factors: This physiological process is directly dependent on Vitamin K, which acts as a cofactor for the gamma-glutamyl carboxylase enzyme to activate factors II, VII, IX, and X.
• B. Formation of visual rhodopsin: This process is dependent on Vitamin A (Retinol). Retinol converts into 11-cis-retinal, which binds to opsin to form rhodopsin inside the rod cells of the retina.
• D. Collagen hydroxylation: This process is directly dependent on Vitamin C (Ascorbic Acid), which serves as an essential reducing agent/cofactor for the prolyl and lysyl hydroxylase enzymes that stabilize the collagen triple helix. | 182 |
| 17 | Code | 170 |
| 18 | Q12
With vitamin D deficiency receiving increasing public-health attention, which physiological process is most directly dependent on adequate vitamin D?
A. Synthesis of clotting factors
B. Formation of visual rhodopsin
C. Intestinal calcium absorption
D. Collagen hydroxylation
E. None of the above | 169 |
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| 20 | UPSC Prelims Secrets.pdf | 163 |
