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Intro Radiation Biology RT 207 Flashcards | StudBud
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Intro Radiation Biology RT 207
Intro Radiation Biology RT 207
30 terms
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Questions
30
Answers
1
lymphocytes are the most radiosensitive
True
False
2
what areas were contaminated for Fukishima Daiichi nuclear plant crisis
crops
fish
water
animals
3
protein enzymes repair molecules and help cells recover from a small amount of radiation
False
True
4
what does ionization cause in the body
all the above
increase mutation frequency
abnormal cell function
chemical bond breakage
5
biological changes do appear immediately
True
False
6
Russell and Russell stuided potential effects of radiation using mice, which many had miscarriages/spontaneous abortions
False
True
7
stochastic effect
increase incidence of a response
decrease incidence of a response
increase dose
decrease dose
8
cells in mitosis are always the most sensitive
True
False
9
molecules may break but can repair
False
True
10
low levels of radiation is a DX concern
True
False
11
the branch of biology concerned with the effects of ionizing radiations on living system
atoms
biology
radiation biology
ionization
12
damage to molecults because radiation caused by ionization
chemical bond breakage
abnormal cell function
13
radiation produces no unique changes in the body
True
False
14
what is the process of ionization
reversible process
all the above
chrage, mass and energy
gives us an effect
15
when you increase metabolic activity, radiosensitivity increases/decreases
increase
decrease
16
deterministic effect
decrease severity as a response
increease severity as a response
increase dose
decrease dose
17
interaction of radiation in cells is
photoelectric effect
probability/possibility
interaction is matter of chance
possbile reaction
18
Alice Stewart studied pregnant mothers and babies in utero
False
True
19
Ann Arbor discovered what cancer
thyroid
thymus
breast
mouth
20
one that is specialized functionally and structurally
all the above
stem cells
mitosis
differentiated cells
21
who discovered radiation mutagenesis using fruit flies
Ann Arbor
Russell and Russell
H.D. Muller
Alice Stewart
22
why are stem cells more sensitive
immature cells
this happens more in leukemia patients
mature cells
theyre younger
23
radiation deposits energy in a cell randomly
False
True
24
what was Chernobyl
contaiminated area
had leaking radiation sources
all the above
nuclear power plant
25
what is Henri Coutard law of fractionation
radiation has more effect on the body if doses are larger
radiation is a less effect on the body if doses are smaller
spread over time
testies that are used in xray
26
higher level of metabolic acitivty = more/less radiosensitivity
more
less
27
Bergonie and Tribodeau
stem cells are least sensitive
younger tissues and organs are more radiosensitive
develops laws of radiosensitivity
stem cells are more sensitive
28
Fukishima Daiichi nuclear plant crisis was tital wave that released radiation like iodine
False
True
29
which tissues and organs are more radiosensitive
younger
both
older
30
can cause damage to atoms that result in damage to cells, molecules are also damaged
protein synthesis
chemical bond breakage
protein enzymes
abnormal cell function
