Module 2B Quiz Flashcards
As LET increases, RBE
a.) increases
b.) decreases
c.) remains teh same
d.) RBE and LET are not interdependent
a.) increases
Free radicals are usually caused by a ____________ interaction.
a.) direct
b.) indirect
b.) indirect
Which of the following are effects on DNA?
1.) mutation
2.) chromosome break
3.) deletion
4.) double strand break
5.) single strand break
6.) cross linking
7.) apoptosis
a.) 2, 3 and 6
b.) all of these have an effect on DNA
c.) 1, 4, 5 and 6
d.) 2, 4 and 5
c.) 1, 4, 5 and 6
DNA is typically not visible during mitosis until it reaches _____________.
a.) telophase
b.) anaphase
c.) metaphase
d.) interphase
c.) metaphase
Direct action may occur after exposure to any type of radiation, but it is much more likely to happen after exposure to:
a.) low LET radiation such as gamma rays
b.) low LET radiation such as gamma rays
c.) high LET radiation such as alpha particles
d.) nonionizing radiation such as microwaves
c.) high LET radiation such as alpha particles
Restitution when a chromosome is effected by radiation will result in:
a.) part of the chromosome missing when it divides the next time
b.) mutations
c.) too much damage to be repaired
d.) repair of the chromosome
d.) repair of the chromosome
Which of the following damage to DNA is easiest to repair?
a.) none of these are able to be repaired
b.) double strand break in the same rung of the ladder
c.) single strand break
d.) double strand break
c.) single strand break
____________ describes the capabilities of radiation with differing LETS to produce a particular biologic reaction. Helps determine Wr.
a.) OER
b.) LET
c.) RBE
c.) RBE
Restitution, deletion, and broken end rearrangements are examples of:
a.) what occurs after a chromosome is damaged
b.) the result of damage to the DNA
c.) what causes a chromosome to becomes damaged
d.) the result of damage to the entire cell
a.) what occurs after a chromosome is damaged
The term apoptosis is synonymous with:
a.) meiosis
b.)) programmed cell death
c.) point mutation
d.) mitosis
b.) programmed cell death
When low LET radiation interacts with biologic tissue it causes damage to the cell primarily through an _____________ action.
a.) direct
b.) indirect
b.) indirect
damage occurs on the:
1.) molecular level
2.) nerve ending level
3.) cellular level
4.) organ level
5.) muscle fiber level
a.) 2, 3 and 4
b.) 1, 3 and 4
c.) all of the above
d.) 1 and 5
b.) 1, 3 and 4
_____________ LET will give up energy slowly, thus decreasing its effect on surrounding tissues.
a.) high
b.) low
b.) Low
A cell will respond differently to radiation based on whether it is hypoxic, anoxic or oxygenated is called:
a.) OER
b.) RBE
c.) PET
d.) LET
a.) OER
According to bergonie and tribodondeau which of the following are the most radiosensitive?
1.) germ cells
2.) nerve cells
3.) muscle cells
4.) immature cells
5.) highly specialized
6.) differentiated
a.) 1 and 4
b.) 1, 4, 5 and 6
c.) 2, 3 and 6
d.) 1, 4 and 5
e.) 2 and 6
a.) 1 and 4
