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radiowksheet casey
worksheet casey made
| Question | Answer |
|---|---|
| The law of bergonie’ and trivondeau states that | Stem cells are radiosensitive, younger cells and tissues are more radiosensitive, and a high metabolic rate increases the radio-sensitivity of cells. |
| About 15 % of the cell is | Protein |
| Gene pairs of the cell is | Alleles |
| If a one break effect to a chromosome does not reattach, it is called | Terminal deletion |
| This summarizes the characteristics of radiation | Most mutations are undesirable and mutagenic effects are probably cumulative |
| Cancer cells differ from normal cells in what ways | An increased amount of chromatin and an increased ratio of nuclear material to cytoplasm |
| Low LET radiations such as x radiation and gamma radiation are also | Sparsely ioninzing |
| The 2n number in cells is also known at the _____ number | Diploid |
| Main chain scission | Is the breakage of the thread or backbone of the long-chain macromolecule, results in the reduction of a long, single molecule into many smaller molecules, reduces not only the size of the macromolecule but also the viscosity of the solution |
| Point lesions | Can result in a minor modification of the molecule |
| Radiolysis of water results in the formation of | Ions and free radicals |
| According to the target theory, cell death occurs only if the target molecule is inactivated | |
| According to the target theory, in the presence of oxygen | The indirect effect is amplified |
| When human cells replicate by mitosis, the average time from one mitosis to another is called the | cell cycle time or cell generation time |
| Cross-linking | Process in which small spur-like molecules extend off the main chain and attach to a neighboring macromolecule or to another segment of the same molecule |
| Free radicals | Uncharged molecules containing a single unpaired electron in the valence or outermost shell |
| In vitro | Outside the body or cell |
| Main-chain scission | Breakage of the thread or backbone of the long chain macromolecule |
| Point lesions | Disruptions of single chemical bonds in a molecule that can result in minor modifications of the molecule |
| In vivo | Within the body or cell |
| Point mutation | Molecular lesions of the DNA that cause genetic mutations occurring as a result of radiation damage |
| Viscosity | Thick fluidity |
| In the presence of oxygen, the effects of low-LET radiation is | amplified |
| When an interaction occurs between radiation and the target, a _______ is said to have occurred. When it occurs through indirect effect, the size of the target appears considerably ______because of the mobility of the ________ | Direct hit, larger, free radicals |
| When water is irradiated, it _________ into other molecular products. This action is termed the ________ of water | Dissociates, radiolysis |
| _________ is the most important molecule in the human body because it contains the _________ information | DNA, genetic |
| _________control the growth and development of the cell | Chromosomes |
| It is believed that observable human radiation injury results from change at the ________ level | Molecular |
| The occurance of molecular lesions is categorized into effects on _________ and effects on _______ | Macromolecules, water |
| Since the human body is an aqueous solution containing 80% _________ molecules, radiation interaction with ________ is the principal radiation interaction in the body. | Water, water |
| Essentially, the law of Bergonie’ and tribondeau states that _________ is a function of the metabolic state of the cell being irradiated | Radiosensitivity |
Created by:
hseratt
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