Across
- 2. a bit of tissue or fluid taken for diagnostic purposes
- 4. the branch of biology that studies the structure and function of cells
- 6. helps maintain the cell shape
- 9. a threadlike strand of dna that carries genes
- 10. sorts proteins and package them into vesicles
- 12. have membrane bound structures
- 13. relating to the study of hereditary and variation grown in organism
- 14. breaks down food and releases energy
- 19. green organelles where food is made (plant cells)
- 20. the organic process that is necessary for life
- 22. directs all cell activities
- 23. makes proteins
- 25. found in nucleus and makes ribosomes
- 26. the movement of molecules from a region of higher concentration to lower concentration
- 27. the tendency to resist change in order to maintain stable
- 28. delivers materials through the cells
- 30. gel like mixture that contains hereditary materials
Down
- 1. tough outer covering of plant cells that protects and keeps shape
- 3. a complex protein produced by cells that act as a catalyst
- 5. cellular organism that lacks an envelope-enclosed nucleus
- 7. movement of a liquid through accessible membrane into a solution of higher concentration
- 8. protective outer covering of the cell
- 11. structures that carry on the cell's processes
- 15. made of 2 or more different types of tissues that work together.
- 16. formation of compounds in plants aided by radiant energy
- 17. group of similar cells that work together
- 18. stores materials
- 21. breaks down food, waste an old cell parts
- 24. a class of small organelles containing pigment or food
- 29. theory living things are made of cells, they are basic structural units of all organisms, cells come from pre-existing cells