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QR Challenge: Radiation Biology Final Review

QuestionAnswer
True of false. RNA is a double strand.False. It is a single strand.
True of false. RNA contains uracil.True.
True of false. RNA contains deoxyribose sugar.True
What are the 3 types of RNA?tRNA, mRNA, and rRNA
a large D subscript o represents (radiosensitivity/radioresistance)radioresistance
In a linear nonthreshold dose response curve, the curve exhibits a (deterministic/stochastic) effect.stochastic
True or false. In a sigmoid, threshold dose-response curve, there is no recovery associated with lower doses.false. There is partial recovery. Bushong 484
True or false. In a sigmoid, threshold dose-response curve, usually there is an upward point at the highest dose.false. There is a downward turning point.
in a sigmoid, threshold dose-response curve, the curve exhibits (deterministic/stochastic) behavior.deterministic
True or false. In a sigmoid, threshold dose-response curve, you have to reach a certain dose before you will get a specific effect.true
True or false. Cancer is a long term somatic effect.true
True or false. Cataracts are a long term somatic effect.true.
True or false. Life span shortening is a long term somatic effect.true
What are the three dose modifying factors of late radiation effects? (hint one is dose)dose, dose rate, and species variation.
What are the 3 stage of lethality or response? (think whole body exposure, syndrome stages)prodromal, latent, manifest.
Why do hydrogen and hydroxyl ions present minimal danger of biologic damage?They can easily recombine to form a water molecule.
The measure of cell radiosensitivity on a survival is curve is the definition of what?Do
The dose of radiation that will kill 63% of the irradiated population is the definition of what?D37
The maximum sublethal damage, measured on the shoulder of the cell survival curve is the definition of what?Dq
Hemopoietic syndrome is an (early/late) effect.early
Erythema is an (early/late) effect.early
Childhood malignancy is an (early/late) effect.late
Bone cancer is an (early/late) effect.late
Nausea and vomiting are an (early/late) effect.early
Prenatal death is an (early/late) effect.early
Cataracts are an (early/late) effect.late
As radiosensitivity increases, LET (increases/decreases)increases
As the mass of a particles increases, LET (increases/decreases)increases
As LET increases, RBE (increases/decreases)increases
As radiosensitivity increases, OER (increases/decreases)increases
Radioprotectors (increase/decrease) sensitivity of the tissues.decrease
As dose rate decreases, RBE (increases/decreases)decreases
As the extrapolation number decreases, the cell's radiosensitivity (increases/decreases).increases. The extrapolation number measures the cell's capacity to withstand damage.
Death occurs in some, but not all (Hematopoietic/GI/CNS)hematopoietic
10-50 Gy exposure (Hematopoietic/GI/CNS)GI
2-10 Gy exposure (Hematopoietic/GI/CNS)hematopoietic
50+ Gy exposure (Hematopoietic/GI/CNS)CNS
Death occurs within hours to 3 days (Hematopoietic/GI/CNS)CNS
Death occurs within 4-10 days (Hematopoietic/GI/CNS)GI
Decreased blood count is a key factor (Hematopoietic/GI/CNS)hematopoietic
Drastic decrease in fluids (Hematopoietic/GI/CNS)GI
Infection and death of crypt cells are a key factor (Hematopoietic/GI/CNS)GI
Burning sensation of the skin (Hematopoietic/GI/CNS)/CNS

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