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Cellular effects of radiation MCQs

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1. What is the primary mechanism by which radiation causes cellular damage?





2. Which type of radiation is most damaging to cellular DNA?





3. What is the main cellular target for radiation damage?





4. Which cellular process can be activated in response to radiation-induced DNA damage?





5. What is the term for the death of cells due to severe radiation damage?





6. Which of the following is a potential long-term effect of radiation exposure on cells?





7. What cellular component is primarily affected by ionizing radiation?





8. What is the phenomenon called when cells exhibit altered functions after radiation exposure?





9. Which type of cell is generally more resistant to radiation damage?





10. Which cellular repair mechanism is primarily responsible for fixing DNA double-strand breaks caused by radiation?





11. What is the term for the radiation dose that causes 50% of the exposed population to die within a specified period?





12. What effect does low-dose radiation have on cells in terms of their function?





13. What type of radiation is often used in cancer treatment due to its ability to damage tumor cells?





14. Which phase of the cell cycle is most sensitive to radiation exposure?





15. What cellular effect can occur if radiation causes mutations in proto-oncogenes?





16. How does radiation exposure influence the cell cycle?





17. What is the primary method by which cells attempt to repair radiation-induced DNA damage?





18. Which of the following is a consequence of radiation exposure to healthy cells?





19. Which type of radiation is least likely to penetrate human tissue?





20. What is the acute radiation syndrome threshold dose for humans?





21. What role does reactive oxygen species (ROS) play in radiation-induced cellular effects?





22. Which type of biological effect is primarily associated with high doses of radiation?





23. What effect can radiation have on stem cells?





24. Which cell type has the highest sensitivity to radiation?





25. How do radiation-induced mutations affect future generations of cells?





26. Which cellular component is primarily responsible for sensing DNA damage after radiation exposure?





27. What is the primary effect of radiation on cancer cells?





28. Which factor influences the cellular response to radiation?





29. What is the main reason that some tissues are more radioresistant than others?





30. What type of radiation is typically used for diagnostic imaging due to its penetrating ability?





 
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