Upsc prelims MCQ
š Analytical overview of Telegram channel Upsc prelims MCQ
Channel Upsc prelims MCQ (@upsc_prelims_test_mcq) in the English language segment is an active participant. Currently, the community unites 49 975 subscribers, ranking 3 471 in the Education category and 7 151 in the India region.
š Audience metrics and dynamics
Since its creation on Š½ŠµŠ²ŃŠ“омо, the project has demonstrated rapid growth, gathering an audience of 49 975 subscribers.
According to the latest data from 05 September, 2026, the channel demonstrates stable activity. Although there has been a change in the number of participants by -771 over the last 30 days and by -19 over the last 24 hours, overall reach remains high.
- Verification status: Not verified
- Engagement rate (ER): The average audience engagement rate is 0.66%. Within the first 24 hours after publication, content typically collects 0.33% reactions from the total number of subscribers.
- Post reach: On average, each post receives 329 views. Within the first day, a publication typically gains 167 views.
- Reactions and interaction: The audience actively supports content: the average number of reactions per post is 1.
- Thematic interests: Content is focused on key topics such as prelim, statement, upsc, peak, topper.
š Description and content policy
Channel description not provided.
Thanks to the high frequency of updates (latest data received on 06 September, 2026), the channel maintains relevance and a high level of publication reach. Analytics show that the audience actively interacts with content, making it an important point of influence in the Education category.
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| 2 | Which ecological phenomenon directly triggers the breeding cycles of the Critically Endangered KÄkÄpÅ 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)āD], 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 |
