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What role does oxygen play?

What role does oxygen play? Correct Answer It regulates the work of free radicals

When radiation strikes the cells, it ionizes the water molecules and they break into H and OH ions. These ions are charged with energy due to the radiations and they attack the DNA of the cancerous cells and damages them. In the presence of oxygen, this process is accelerated and also the damage inflicted on the DNA is brought under control. The oxygen reacts with the free hydrocarbon particles and fills up the gaps in DNA allowing it to recover properly.

Related Questions

In a class of 95 students, all play at least one of the three games — snooker, chess and tennis. 42 students play snooker, 49 play tennis, and 43 play chess. The total number of students who play any and only two games is 29. 5 students play all the three games. The number of students who play only snooker and only chess is equal. 11 students play only snooker and tennis. 6 students play only snooker and chess. How many students play only tennis?
Which of the following statements relating to 'role' is/are true and false?
1 The system of various roles that the individual carries and performs is 'role set'.
2. The system of various roles of which an individuals role is a part in 'role space'.
3. Self role integration, proactivity, creativity and conformation are ingredients of the role making dimension of role efficacy.
4. Role stress is caused by both role space conflict and role set conflict.
A club has 256 members of whom 144 can play football, 123 can play tennis, and 132 can play cricket. Moreover, 58 members can play both football and tennis, 25 can play both cricket and tennis, while 63 can play both football and cricket. If every member can play at least one game, then the number of members who can play only tennis is
There are 75 students in a class, they all play at least one of the instruments namely violin, guitar, and harmonium. Further it is known that, 15 students play all the three instruments. 20 students play both guitar and violin, 30 students play both guitar and harmonium and 25 students play both violin and harmonium. A total of 50 students can play harmonium and a total of 45 students play violin. What is the number of students who can play only guitar?
In a music class, 12 students can play flute, 11 can play guitar and 10 can play violin. 6 students can play flute as well as guitar and 3 out of these can also play violin. 3 students can play only guitar and 4 students can play only violin. How many students can play only flute?
The following questions are based on the information given below: Out of a group of 60 students, 25 play Cricket, 30 play Football, 24 play Volleyball, 10 play Cricket and Football, 9 play Cricket and Volleyball, 12 play Volleyball and Football and 5 play all the three. How many students play exactly two games?
The following questions are based on the information given below: Out of a group of 60 students, 25 play Cricket, 30 play Football, 24 play Volleyball, 10 play Cricket and Football, 9 play Cricket and Volleyball, 12 play Volleyball and Football and 5 play all the three. How many students do not play any one of the games?
The following questions are based on the information given below: Out of a group of 60 students, 25 play Cricket, 30 play Football, 24 play Volleyball, 10 play Cricket and Football, 9 play Cricket and Volleyball, 12 play Volleyball and Football and 5 play all the three. How many students play Cricket only?
In a class of 84 students, 55 play cricket, 47 play football and 42 play volleyball. 20 play both cricket and football, 22 play both football and volleyball and 26 play both cricket and volleyball. If each student plays at least one game, find the number of students who play only cricket.
Each student in a class of 40 plays at least one indoor game-chess, carom and scrabble. 18 play chess, 20 play scrabble and 27 play carom. 7 play both chess and scrabble, 12 play both scrabble and carom and 4 play all 3 games. The number of players who play chess and carom but not scrabble is