UPSC Prelims Science & Technology
Components Of Food
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Consistency: 20%
Weightage: 3 / 15 Yrs
High-Yield Trend
1
2014 1
2013 3
2011 Questions 5 MCQs
01
PYQ 2011
prelims
hard
science-and-technology ID: upsc-201
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?
1
They activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency.
2
They prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy.
3
They neutralize the free radicals produced in the body during metabolism.
4
They activate certain genes in the cells of the body and help delay the ageing process.
02
PYQ 2011
prelims
hard
science-and-technology ID: upsc-201
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?
1
1 only
2
2 and 3 only
3
1 and 3 only
4
1, 2 and 3
03
PYQ 2011
prelims
hard
science-and-technology ID: upsc-201
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 ?
1
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.
2
When aspartame is used in food processing, the sweet taste remains, but it becomes resistant to oxidation.
3
Aspartame is as sweet as sugar, but after ingestion into the body, it is converted into metabolites that yield no calories.
4
Aspartame is several times sweeter than table sugar, hence food items made with small quantities of aspartame yield fewer calories on oxidation.
04
PYQ 2013
prelims
hard
science-and-technology ID: upsc-201
Consider the following minerals -
1. Calcium
2. Iron
3. Sodium Which of the minerals given above is/are required by the human body for the contraction of muscles?
1
1 only
2
1 and 2 only
3
1 and 3 only
4
1, 2 and 3
05
PYQ 2014
prelims
easy
science-and-technology ID: upsc-201
Consider the following pairs :
|Vitamin|Deficiency disease|
|-- |--|
|1. Vitamin C | Scurvy|
|2. Vitamin D|Rickets|
|3. Vitamin E | Night blindness| Which of the pairs given above is/are correctly matched?
1
1 and 2 only
2
3 only
3
1, 2 and 3
4
None