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3 questions · 2011 · answers as per the UPSC key

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UPSC 2011 · Q40 · Science & Technology › Health & Diseases · Save

A company marketing food products advertises that its items do not contain trans-fats. What does this campaign signify to the customers?

  1. The food products are not made out of hydrogenated oils.
  2. The food products are not made out of animal fats/oils.
  3. The oils used are not likely to damage the cardiovascular health of the consumers.

Which of the statements given above is/are correct?

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
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Answer: (c) 1 and 3 only
UPSC 2011 · Q62 · Science & Technology › Health & Diseases · Save

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?

(a) Aspartame is as sweet as table sugar, but unlike table sugar, it is not readily oxidized in human body due to lack of requisite enzymes
(b) When aspartame is used in food processing, the sweet taste remains, but it becomes resistant to oxidation
(c) Aspartame is as sweet as sugar, but after ingestion into the body, it is converted into metabolites that yield no calories
(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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Answer: (d) Aspartame is several times sweeter than table sugar, hence food items made with small quantities of aspartame yield fewer calories on oxidation
UPSC 2011 · Q91 · Science & Technology › Health & Diseases · Save

Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. How do antioxidants help a person maintain health and promote longevity?

(a) They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency
(b) They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy
(c) They neutralize the free radicals produced in the body during metabolism
(d) They activate certain genes in the cells of the body and help delay the ageing process
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Answer: (c) They neutralize the free radicals produced in the body during metabolism