Which cells are more sensitive to X-rays?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for the South Carolina Dental Association Radiation Safety Test with flashcards and multiple choice questions, complete with hints and explanations. Get ready for success!

Multiple Choice

Which cells are more sensitive to X-rays?

Explanation:
Cells that are actively dividing and not fully differentiated are most sensitive to X-rays. When a cell is immature and rapidly growing, it spends more time in DNA replication and cell division, making it easier for radiation to cause lethal DNA damage or misrepair. Differentiated, non-dividing cells—like post-mitotic neurons—have less vulnerability because they’re not in the process of replication, so they’re relatively radioresistant. Saying all cells are equally susceptible ignores these differences in division and differentiation. So, immature, rapidly growing cells are the ones most sensitive to X-rays.

Cells that are actively dividing and not fully differentiated are most sensitive to X-rays. When a cell is immature and rapidly growing, it spends more time in DNA replication and cell division, making it easier for radiation to cause lethal DNA damage or misrepair. Differentiated, non-dividing cells—like post-mitotic neurons—have less vulnerability because they’re not in the process of replication, so they’re relatively radioresistant. Saying all cells are equally susceptible ignores these differences in division and differentiation. So, immature, rapidly growing cells are the ones most sensitive to X-rays.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy