Unit 2: Cell Theory
Across
- 2. : Organelle that contains the cell's DNA and controls cell activities
- 4. : Structure involved in cell division and spindle formation
- 6. : Short hair-like structures used for movement or moving materials
- 7. : Cell lacking a nucleus and membrane-bound organelles
- 12. : Membrane proteins that help substances move across the membrane
- 13. : States that all living things are made of cells, cells are the basic unit of life, and cells come from existing cells
- 15. : Factors kept constant during an experiment
- 17. : Theory that mitochondria and chloroplasts evolved from free-living prokaryotes engulfed by larger cells
- 18. : Storage organelle for water, nutrients, and wastes
- 20. : Organelle with ribosomes that modifies and transports proteins
- 21. : Factor intentionally changed by the experimenter
- 23. : Organelle that modifies, sorts, and packages proteins
- 24. : Organelles that produce ATP through cellular respiration
- 25. : Organelle where photosynthesis occurs in plants
- 27. : Structures that synthesize proteins
- 29. : Molecule that stores genetic information
- 30. : Organelle that synthesizes lipids and detoxifies substances
- 31. : Selectively permeable boundary that surrounds the cell
- 32. : Double membrane surrounding the nucleus
Down
- 1. : Openings in the nuclear envelope that regulate transport
- 3. : Rigid outer layer that provides support and protection
- 5. : Cell containing a nucleus and membrane-bound organelles
- 6. : Gel-like material inside the cell where organelles are located
- 8. : Network of protein fibers that provides support and movement for the cell
- 9. : Allows some substances to pass while blocking others
- 10. : Long whip-like structures used for cell movement
- 11. : Condensed structure of DNA and proteins that contains genes
- 14. : Factor measured in an experiment
- 16. : Process of testing a hypothesis using controlled procedures
- 19. : Relationship between a cell's surface area and its volume that affects transport efficiency
- 22. : Testable prediction based on observations
- 26. : Organelle containing digestive enzymes that break down waste
- 28. : Specialized structure within a cell that performs a specific function