kats final on the 9th 3

During irradiation, which of the following is more biologically dangerous?

Dense ionization
Sparse ionization  
Both are equal

If HOH+ and an electron combine, which of the following occurs?

OH*
H*
H2O
HOH-

The most important aspect of radiobiologic research involves radiation dose-response relationships. 
true or false
True False

The presence of which of the following with low LET radiation will increase biologic damage?

Water
Heat
oxygen
Soft tissue

Which of the following is used as the standard for RBE?

Gamma
X-rays
Alpha
Beta

What are the three levels of biologic effects of radiation on humans?

Genetic, molecular, cellular
Organic, cellular, genetic
Molecular, genetic, organic 
Molecular, cellular, organic

What increases the probability of biologic damage?

Increased ionization per micron of soft-tissue
Increased LET
Reduced speed of particles 
All of the above

Which of the following would be most radiosensitive?

Cells that reproduce slowly 
Cells that reproduce rapidly