Across
- 4. The process of breaking down food into substances the body can use for energy, tissue growth, and repair
- 7. a rigid, external layer that is specifically designed to provide structural support and rigidity
- 8. Membrane found in cell organelles
- 10. composed of specialized cells called muscle fibers
- 12. a group of cells that have similar structure and that function together as a unit.
- 15. A molecule made up of amino acids
- 17. an energy-driven process where membrane proteins transport molecules across cells
- 19. The movement of water molecules from a higher concentration to a lower one
- 20. the production of offspring
Down
- 1. The structure in a cell that contains the chromosomes
- 2. A small dense spherical structure in the Nucleus of a cell during interphase
- 3. The system that contains the heart and the blood vessels and moves blood throughout the body
- 5. An organism whose cells contain a nucleus within a membrane
- 6. a mode of transport of large quantities of materials and food particles across the membrane
- 9. An organelle within plant cells
- 11. A cellular organelle composed of many folds of tissue and muscles
- 13. A membrane-bound cell organelle that contains digestive enzyme
- 14. proteins that help speed up chemical reactions in our bodies.
- 16. The organized network of nerve tissue in the body
- 18. your body's support structure