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Bushong chapter 29
| Question | Answer |
|---|---|
| Deterministic effect | Occurs within days after exposure. In crease in severity with increasing radiation dose. |
| Stochastic effect | not observed for months or years. The incident of radiation response increases with increasing radiation dose. |
| 85 % of the human body is composed of | hydrogen and oxygen |
| 5 types of molecules found in the body and 1 macromolecule | proteins, lipids (fats), carbohydrates (suagars/starches), nucleic acid Macromolecule: DNA |
| Catabolism | Breaking down into smaller units |
| Anabolism | Production of LG molecules from small |
| DNA | Command/controls for cell function; contains hereditary info |
| protein synthesis | Metabolic production of proteins |
| Proteins | Funtion as enzymes, homones and antibodies. Give the body structure and support |
| Proteins: generalized formula | CHONT (carbon, hydrogen, oxygen, nitrogen, trace elements) |
| Lipids | Glycerol and fatty acids, structural components of cell membranes (thermal insulator under skin), fuel for body |
| Lipids: generalized formula | CHO (carbon, hydrogen, oxygen) |
| Carbohydrates | AKA: saccharides, monosaccharide's, disaccharides. Chief function is to provide fuel for cell metabolism. |
| Carbohydrates: generalized formula | CHO hydrogen atoms to oxgen atoms ratio is 2:1 |
| Disaccharides | Sugars C6 H12 D6 |
| Polysaccharides | Large and include plant starches and animal glycogen C6 H10 O5 |
| Ultimate molecule that fuels the body: | Glucose |
| RNA: two types | mRNA (messenger) ; tRNA (transfer) |
| What is RNA involved in? | Growth and development |