MCQOPTIONS
Saved Bookmarks
| 1. |
What role does oxygen play? |
| A. | It causes a damage to the DNA |
| B. | It oxygenates the cells that have undergone necrosis |
| C. | It regulates the work of free radicals |
| D. | It reduces the tumour size |
| Answer» D. It reduces the tumour size | |