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GS Paper IUPSC Prelims 2014
Health & Medicine
Question No. 178Interactive Test Mode
00:00
+2-0.66

Q178. Which one of the following is the process involved in photosynthesis?

Which one of the following is the process involved in photosynthesis?

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 2014 • Science and Technology

Correct Answer: Option (B) — Free energy is converted into potential energy and stored.

Concept & Option Breakdown

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Option (b) is correct: During photosynthesis, plants convert radiant solar energy (free/kinetic light energy) into chemical bond energy (potential energy) stored within glucose molecules: 6H₂O + 6CO₂ → C₆H₁₂O₆ + 6O₂.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2014 (Q178)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (B) — Free energy is converted into potential energy and stored.

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Frequently Asked Questions — UPSC Prelims 2014 Q178

What is the official answer for UPSC Prelims 2014 GS Paper I Question 178 (Science and Technology)?

The official UPSC answer key for this 2014 Science and Technology (Health & Medicine) question is Option (B): "Free energy is converted into potential energy and stored.". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2014 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?

To solve Health & Medicine questions in UPSC Prelims, identify extreme modifiers, verify core NCERT conceptual definitions, and eliminate mutually contradictory statement pairs before locking your final option.

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