Scientific terms

5. the study of life and living organisms.
8. single celled organisms, such as bacteria and archaea, whose cells lack a nucleus.
9. a structure within eukaryotic cells that is surrounded by a double membrane and that contains the cell’s DNS.
10. structures within the cytoplasm of eukaryotic cells that perform specific functions of the cell.
12. adenosine triphosphate, the molecule that provides the energy for most cellular processes.
13. organic molecules that consist of a single simple sugar or chains of simple sugar molecules.
14. the process in plants and some other organisms in which light energy from the sun is converted into chemical energy in organic molecules.
15. the basic units of life that make up all living organisms.

1. organisms whose cells have a true nucleus, such as protists, animals, plants and fungi.
2. organic molecules composed of folded chains of amino acids.
3. the organelles within plant cell in which photosynthesis occurs.
4. eukaryotic organelles that break down organic molecules to produce ATP.
6. hydrophobic organic molecules, many in which include fatty acids as a primary component.
7. the part of a cell that is inside the cell membrane but outside nucleus.
11. complex proteins that catalyze chemical reactions in living organisms.