Human Biology

4. most radiation-sensitive target molecule; located in the nucleus of a cell
7. response increases in severity with increasing dose
12. when genetic cells divide and proliferate
13. molecules that do not contain carbon
14. molecules that support life and contain carbon
16. the production of large molecules from small molecules
17. very large molecules; includes proteins, lipids, nucleic acids, and carbohydrates

1. molecules that exercise regulatory control over some body functions, such as growth and development; produced and secreted by endocrine glands
2. adenine, thymine, cytosine, and guanine
3. molecules that are necessary in small quantities to allow a biochemical reaction to continue
5. the study of the effects of ionizing radiation on biologic tissue
6. provides structure and form for the human cell and its components
8. when somatic cells divide and proliferate
9. incidence of response increases with increasing dose
10. cells are the basic functional units in all plants and animals, are the smallest unit of life, come from pre-existing cells, and contain hereditary information
11. as low as reasonably achievable
15. breaking down into smaller units