Previous Year SSC Comprehension Passage – 01

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This comprehension passage was asked in SSC CPO Tier-II Exam 2019.

Read the passage and answer the questions that follow.

The term ‘dietary fibres’ refers collectively to indigestible carbohydrates present in plant food. The importance of these dietary fibres came into the picture when it was observed that the people taking a diet rich in these fibres had low incidence of coronary heart disease, irritable bowel syndrome, dental caries and gall stones. 

The foodstuffs rich in these dietary fibres are cereals and grains, legumes, fruits with seed, citrus fruits, carrots, cabbage, green leafy vegetables, apples, melons, peaches, pears etc. These dietary fibres are not digested by the enzymes of the stomach and the small intestine. They have the property of holding water and because of it, these get swollen and behave like a sponge as these pass through the gastrointestinal tract. The fibres add bulk to the diet and increase transit time in the gut and decrease the time of release of ingested food in the colon. These fibres hold water so the stools are soft, bulky and readily eliminated.

Their beneficial effects lie in preventing heart disease and de3creasing cholesterol level. The fibres like gum and pectin are reported to decrease post prandial (after meals) glucose level in blood. They are also recommended for the management of certain types of diabetes. 

The fibres increase motility of the small intestine and the colon and so there is less time for exposure of the mucosa to harmful toxic substances. Therefore, there is a less desire to eat and the energy intake can be maintained within the range of requirement. This phenomenon helps in keeping a check on obesity. 

The dietary fibres may have some adverse effects on nutrition by binding some trace metals like calcium, magnesium, phosphorus, zinc and others and therefore preventing their proper absorption. This may pose a possibility of nutritional deficiency especially when diets contain marginal levels of mine3ral elements. This may put constraints on increasing dietary fibres. It is suggested that an intake of 40 gram dietary fibres per day is desirable.

1. What are dietary fibres?


2. Which of the following is NOT rich in dietary fibres?


3. The dietary fibres behave like a sponge because they:


4. What is the theme of the passage?


5. Which of the following statements is NOT true?


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