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Which of the following statements is not correct in the context of anti-oxidants and free radicals?
- a)Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.
- b)Antioxidant molecules have been shown to counteract oxidative stress in laboratory experiments
- c)The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancer
- d)Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.
Correct answer is option 'D'. Can you explain this answer?
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Which of the following statements is not correct in the context of ant...
Explanation:
Introduction:
Antioxidants and free radicals are both involved in the process of oxidation in the body. Oxidation is a natural process that occurs in the body and is necessary for various physiological functions. However, excessive oxidation can lead to the formation of free radicals, which are highly reactive molecules that can cause damage to cells and tissues. Antioxidants help to neutralize these free radicals and prevent or delay cell damage.
Statement Analysis:
a) Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.
- This statement is correct. Antioxidants can be both man-made or naturally occurring substances that have the ability to prevent or delay certain types of cell damage by neutralizing free radicals.
b) Antioxidant molecules have been shown to counteract oxidative stress in laboratory experiments.
- This statement is correct. Numerous laboratory experiments have demonstrated the ability of antioxidant molecules to counteract oxidative stress, which is caused by an imbalance between the production of free radicals and the body's ability to neutralize them.
c) The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancer.
- This statement is correct. Several studies have shown that high-dose beta-carotene supplements may increase the risk of lung cancer in smokers. Similarly, high-dose vitamin E supplements have been associated with increased risks of hemorrhagic stroke and prostate cancer. It is important to note that these risks are associated with high-dose supplements and not with dietary intake of beta-carotene or vitamin E.
d) Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.
- This statement is not correct. Free radicals are highly reactive and unstable molecules. They have an unpaired electron, which makes them chemically unstable and highly reactive. Cigarette smoke, air pollution, and sunlight are sources of free radicals, not suppliers. These external factors can increase the production of free radicals in the body.
Conclusion:
In the context of antioxidants and free radicals, the statement "Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body" is not correct. Free radicals are highly reactive and unstable molecules, and external factors such as cigarette smoke, air pollution, and sunlight can increase their production in the body.
Introduction:
Antioxidants and free radicals are both involved in the process of oxidation in the body. Oxidation is a natural process that occurs in the body and is necessary for various physiological functions. However, excessive oxidation can lead to the formation of free radicals, which are highly reactive molecules that can cause damage to cells and tissues. Antioxidants help to neutralize these free radicals and prevent or delay cell damage.
Statement Analysis:
a) Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.
- This statement is correct. Antioxidants can be both man-made or naturally occurring substances that have the ability to prevent or delay certain types of cell damage by neutralizing free radicals.
b) Antioxidant molecules have been shown to counteract oxidative stress in laboratory experiments.
- This statement is correct. Numerous laboratory experiments have demonstrated the ability of antioxidant molecules to counteract oxidative stress, which is caused by an imbalance between the production of free radicals and the body's ability to neutralize them.
c) The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancer.
- This statement is correct. Several studies have shown that high-dose beta-carotene supplements may increase the risk of lung cancer in smokers. Similarly, high-dose vitamin E supplements have been associated with increased risks of hemorrhagic stroke and prostate cancer. It is important to note that these risks are associated with high-dose supplements and not with dietary intake of beta-carotene or vitamin E.
d) Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.
- This statement is not correct. Free radicals are highly reactive and unstable molecules. They have an unpaired electron, which makes them chemically unstable and highly reactive. Cigarette smoke, air pollution, and sunlight are sources of free radicals, not suppliers. These external factors can increase the production of free radicals in the body.
Conclusion:
In the context of antioxidants and free radicals, the statement "Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body" is not correct. Free radicals are highly reactive and unstable molecules, and external factors such as cigarette smoke, air pollution, and sunlight can increase their production in the body.
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Which of the following statements is not correct in the context of anti-oxidants and free radicals?a)Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.b)Antioxidant molecules have been shown to counteract oxidative stress in laboratory experimentsc)The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancerd)Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.Correct answer is option 'D'. Can you explain this answer?
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Which of the following statements is not correct in the context of anti-oxidants and free radicals?a)Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.b)Antioxidant molecules have been shown to counteract oxidative stress in laboratory experimentsc)The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancerd)Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.Correct answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following statements is not correct in the context of anti-oxidants and free radicals?a)Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.b)Antioxidant molecules have been shown to counteract oxidative stress in laboratory experimentsc)The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancerd)Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is not correct in the context of anti-oxidants and free radicals?a)Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.b)Antioxidant molecules have been shown to counteract oxidative stress in laboratory experimentsc)The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancerd)Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.Correct answer is option 'D'. Can you explain this answer?.
Which of the following statements is not correct in the context of anti-oxidants and free radicals?a)Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.b)Antioxidant molecules have been shown to counteract oxidative stress in laboratory experimentsc)The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancerd)Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.Correct answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following statements is not correct in the context of anti-oxidants and free radicals?a)Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.b)Antioxidant molecules have been shown to counteract oxidative stress in laboratory experimentsc)The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancerd)Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is not correct in the context of anti-oxidants and free radicals?a)Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.b)Antioxidant molecules have been shown to counteract oxidative stress in laboratory experimentsc)The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancerd)Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.Correct answer is option 'D'. Can you explain this answer?.
Solutions for Which of the following statements is not correct in the context of anti-oxidants and free radicals?a)Antioxidants are man-made or natural substances that may prevent or delay some types of cell damage.b)Antioxidant molecules have been shown to counteract oxidative stress in laboratory experimentsc)The use of high-dose beta-carotene supplements to an increased risk of lung cancer in smokers and use of high-dose vitamin E supplements to increased risks of hemorrhagic stroke and prostate cancerd)Free radicals are highly stable molecules. Cigarette smoke, air pollution, and sunlight can cause increased supply of free radicals in the body.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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