UPSC Prelims 2011·GS1·science-and-technology·science and technology

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?

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Last updated 23 May 2026, 3:31 pm IST
  1. AThey activate the enzymes necessary for vitamin synthesis in the body and help prevent vitamin deficiency
  2. BThey prevent excessive oxidation of carbohydrates, fats and proteins in the body and help avoid unnecessary wastage of energy
  3. CThey neutralize the free radicals produced in the body during metabolismCorrect
  4. DThey activate certain genes in the cells of the body and help delay the ageing process

Explanation

The correct option is C because during normal metabolic processes, the body produces highly reactive molecules called free radicals. These free radicals can damage cells, proteins, and DNA through a process called oxidative stress, which is linked to various diseases and aging. Antioxidants found in fruits and vegetables work by donating electrons to neutralize these free radicals, thereby preventing cellular damage and promoting overall health and longevity. While the other options mention processes like metabolism or aging, they do not accurately describe the specific biochemical function of antioxidants.
science-and-technology: Regular intake of fresh fruits and vegetables is recommended in the diet since they are a good source of antioxidants. H

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