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GS Paper IUPSC Prelims 2011
Health & Medicine
Question No. 206Interactive Test Mode
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Q206. Aspartame is an artificial sweetener sold in the market. It consists of amino acids and provides calories like other amino acids. Yet, it is used as a low-calorie sweetening agent in food items. What is the basis of this use?

Aspartame is an artificial sweetener sold in the market. It consists of amino acids and provides calories like other amino acids. Yet, it is used as a low-calorie sweetening agent in food items. What is the basis of this use?

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 2011 • Science and Technology

Correct Answer: Option (D) — Aspartame is several times sweeter than table sugar, hence food items made with small quantities of aspartame yield fewer calories on oxidation.

Concept & Option Breakdown

Standard Reference Verified

Aspartame (a methyl ester of the aspartic acid/phenylalanine dipeptide) is approximately 200 times sweeter than sucrose (table sugar). Although it yields about 4 kcal/g upon complete metabolic oxidation (identical to proteins/carbohydrates), the quantity required to achieve the desired sweetness is minuscule, resulting in a negligible caloric contribution.

Elimination Heuristic & Exam Approach

High potency sweeteners work because a microscopic fraction of a gram achieves equivalent sweetness, contributing negligible overall calories.

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Question Specifications & Syllabus Mapping

Examination & YearUPSC Civil Services Preliminary Examination 2011 (Q206)
Paper & Marking SchemeGS Paper I • 2 Marks (-0.66 Negative for incorrect response)
Syllabus Subject & TopicScience and Technology → Health & Medicine
Official Answer KeyOption (D) — Aspartame is several times sweeter than table sugar, hence food items made with small quantities of aspartame yield fewer calories on oxidation.

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Frequently Asked Questions — UPSC Prelims 2011 Q206

What is the official answer for UPSC Prelims 2011 GS Paper I Question 206 (Science and Technology)?

The official UPSC answer key for this 2011 Science and Technology (Health & Medicine) question is Option (D): "Aspartame is several times sweeter than table sugar, hence food items made with small quantities of aspartame yield fewer calories on oxidation.". Correct attempts carry 2 Marks with -0.66 Negative penalty for wrong answers.

Which UPSC Prelims syllabus topic does this 2011 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?

High potency sweeteners work because a microscopic fraction of a gram achieves equivalent sweetness, contributing negligible overall calories.

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