Across
- 2. a monosaccharide sugar that has several forms
- 4. an organic compound essential to living cells
- 6. a specialized part of a cell
- 8. any of greens pigments found in photosynthesis organisms
Down
- 1. purine base found in DNA and RNA
- 3. the basic structure and functional unit of all organisms
- 4. a thin membrane enclosing the cytoplasm of a cell
- 5. in all plants and animals
- 7. an elementary particle with negative charge