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GS Paper IUPSC Prelims 2001
Health & Medicine
Question No. 476Interactive Test Mode
00:00
+2-0.66

Q476. Which of the following cell organelles play the most significant role in protein synthesis?

Which of the following cell organelles play the most significant role in protein synthesis?

Select the correct option below (or cross out options to eliminate)
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Official Answer Key & Detailed Solution

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Official UPSC Answer KeyUPSC Prelims 2001 • Science and Technology

Correct Answer: Option (B) — Endoplasmic reticulum and Ribosome

Concept & Option Breakdown

Standard Reference Verified

• Option (b) is correct: Ribosomes are the primary sites of translation where amino acids are assembled into polypeptide chains. The Rough Endoplasmic Reticulum (RER), studded with ribosomes, plays a key role in folding, modifying, and sorting newly synthesized proteins.

Elimination Heuristic & Exam Approach

Ribosomes are universally known as protein factories of the cell.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2001 (Q476)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (B) — Endoplasmic reticulum and Ribosome

Related & Repeated Prelims PYQs (2)

Questions from other UPSC Prelims years testing the same or closely linked concept.

View Cluster in 3D Graph
2001 • Q39083% Match

Which organelle in the cell, other than the nucleus contains DNA?

Science and Technology • Health & MedicineSolve
2001 • Q47583% Match

Which organelle in the cell, other than nucleus, contains DNA?

Science and Technology • Health & MedicineSolve

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Frequently Asked Questions — UPSC Prelims 2001 Q476

What is the official answer for UPSC Prelims 2001 GS Paper I Question 476 (Science and Technology)?

The official UPSC answer key for this 2001 Science and Technology (Health & Medicine) question is Option (B): "Endoplasmic reticulum and Ribosome". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2001 question belong to?

This question belongs to GS Paper I under the subject "Science and Technology" and micro-topic "Health & Medicine". You can explore all repeated questions from Health & Medicine in Acme AI's 3D Prelims PYQ Realm or practice 50 full-length and sectional tests in the APT Prelims Test Series.

How can I solve this Health & Medicine UPSC Prelims question using option elimination?

Ribosomes are universally known as protein factories of the cell.

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