Reading Assessment – Final Examination
Which of the following is the branch of science concerned with the methods of interaction and the
effects of ionizing radiation on living systems? - ANSWER-✔✔radiobiology
Which of the following is credited with the discovery of x-rays in 1895? - ANSWER-✔✔Wilhelm Conrad
Roentgen
Which of the following, in 1906, observed the effects of radiation by exposing rodent testicles to x-rays?
- ANSWER-✔✔Bergonie & Tribondeau
Rick discovered that oxygen increases the cell-killing effect of a given dose of radiation. This is known as
which of the following? - ANSWER-✔✔oxygen effect
The Law of Bergonie infers which of the following? - ANSWER-✔✔stem cells are more radiosensitive
than mature cells
, Which of the following is a measure of the ionization of air created by x- and gamma-radiation? -
ANSWER-✔✔Roentgen (R)
Which of the following describes the energy that is absorbed in matter from any type of ionizing
radiation and is considered the unit of absorbed dose? - ANSWER-✔✔RAD
Which of the following is the unit of dose equivalent, or occupational exposure? - ANSWER-✔✔REM
Which of the following is the SI unit for Roentgen (R)? - ANSWER-✔✔Coulomb/kilogram
Which of the following is the SI unit for the rad? - ANSWER-✔✔Gray
Which of the following is the SI unit for the REM? - ANSWER-✔✔Sievert
What is the current annual effective dose limit for occupational exposure? - ANSWER-✔✔0.05 Sievert
Cells which are considered highly radiosensitive include.
Lymphocytes,
spermatogonia,
erythroblasts,
and intestinal crypt cells - ANSWER-✔✔all the above
Which of the following affects cell responses to radiation?
1. linear energy transfer (LET)
2. relative biologic effectiveness (RBE)
3. oxygen enhancement ratio (OER) - ANSWER-✔✔ALL THE ABOVE