Radiation Biology Chapter 4 Exam Questions and Answers With Verified
Solutions 2025
The latent period in radiation biology is the time between - ✔✔Exposure to x-radiation and clinical
symptoms
A free radical: - ✔✔ALL, is an uncharged molecule, has a unpaired electron in the outer shell , is highly
reactive and unstable, combines with molecules to form toxins
What type of radiation injury is it when X-ray photons hit critical targets within a cell - ✔✔Direct
radiation
what type of radiation injury occurs when X-ray photons are absorbed and form toxins - ✔✔Indirect
radiation
Which of the following relationships describes the response of tissues to radiation? - ✔✔linear
nonthreshold
Which of the following factors contributes to radiation injury? a. total dose
b. dose rate
c. cell sensitivity
d. age
e. all of the above - ✔✔E.
Which of the following statements is correct?
a. short-term effects are seen with small amounts of radiation absorbed in a short period.
b. short-term effects are seen with small amounts of radiation absorbed in a lone period
c. long-term effects are seen with small amounts of radiation absorbed in short period
d. long-term effects are seen with small amounts of radiation absorbed in a long period
e. none of the above - ✔✔D
, Radiation injuries that are not seen in the person irradiated but that occur in future generations are
termed - ✔✔genetic effects
Which of the following is most susceptible to ionizing radiation? - ✔✔small lymphocyte
the sensitivity of tissues to radiation is determined by
a. mitotic activity
b. cell differentiation
c. cell metabolism
d. all of the above - ✔✔D.
Which of the following is considered radioresistant?
a. immature reproductive cells
b. young bone cell
c. mature bone cell
d. epithelial cells
e. none of the above - ✔✔C
An organ that, if damaged, diminishes the quality of an individual's life is termed:
a. critical organ
b. somatic organ
c. cumulative organ
d. radioresistant organ
e. none of the above - ✔✔A
The traditional unit for measuring x-ray exposure in air is termed:
a. the gray
b. coulombs per kilogram
Solutions 2025
The latent period in radiation biology is the time between - ✔✔Exposure to x-radiation and clinical
symptoms
A free radical: - ✔✔ALL, is an uncharged molecule, has a unpaired electron in the outer shell , is highly
reactive and unstable, combines with molecules to form toxins
What type of radiation injury is it when X-ray photons hit critical targets within a cell - ✔✔Direct
radiation
what type of radiation injury occurs when X-ray photons are absorbed and form toxins - ✔✔Indirect
radiation
Which of the following relationships describes the response of tissues to radiation? - ✔✔linear
nonthreshold
Which of the following factors contributes to radiation injury? a. total dose
b. dose rate
c. cell sensitivity
d. age
e. all of the above - ✔✔E.
Which of the following statements is correct?
a. short-term effects are seen with small amounts of radiation absorbed in a short period.
b. short-term effects are seen with small amounts of radiation absorbed in a lone period
c. long-term effects are seen with small amounts of radiation absorbed in short period
d. long-term effects are seen with small amounts of radiation absorbed in a long period
e. none of the above - ✔✔D
, Radiation injuries that are not seen in the person irradiated but that occur in future generations are
termed - ✔✔genetic effects
Which of the following is most susceptible to ionizing radiation? - ✔✔small lymphocyte
the sensitivity of tissues to radiation is determined by
a. mitotic activity
b. cell differentiation
c. cell metabolism
d. all of the above - ✔✔D.
Which of the following is considered radioresistant?
a. immature reproductive cells
b. young bone cell
c. mature bone cell
d. epithelial cells
e. none of the above - ✔✔C
An organ that, if damaged, diminishes the quality of an individual's life is termed:
a. critical organ
b. somatic organ
c. cumulative organ
d. radioresistant organ
e. none of the above - ✔✔A
The traditional unit for measuring x-ray exposure in air is termed:
a. the gray
b. coulombs per kilogram
