Across
- 3. Bean-shaped organelle that supplies energy to the cell & has its own ribosomes & DNA.
- 5. Protein that detects a signal molecule & performs an action in response.
- 10. Interconnected network of thin, folded membranes that produce, process, & distribute proteins.
- 12. Solution that has a lower concentration of dissolved particles than a cell.
- 17. Cell that has a nucleus & other membrane-bound organelles.
- 20. Diffusion of molecules across a membrane through transport proteins.
- 22. Organelle that contains enzymes.
- 23. Movement of molecules across the cell membrane without energy input from the cell.
- 24. Organelle composed of numerous membranes that are used to convert solar energy into chemical energy; contains chlorophyll.
- 25. Drives molecules across a membrane from lower concentration to higher concentration.
- 28. Diffusion of water molecules across a semipermeable membrane from an area of higher water concentration to lower water concentration.
- 30. Model that describes the arrangement & movement of the molecules that make up a cell membrane.
- 32. Release of substances out a cell by the fusion of vesicle with the membrane.
- 33. Condition or quality of allowing some, but not all, materials to cross a barrier or membrane.
- 34. Process of taking liquids or large molecules into a cell by engulfing them in a membrane.
Down
- 1. Solution that has an equal concentration of dissolved particles compared with another solution.
- 2. Molecule that forms a double-layered cell-membrane; consists of a glycerol, a phosphate group, & two fatty acids.
- 4. Membrane-bound structure that is specialized to perform a distinct process within a cell.
- 6. Cell that does not have a nucleus or other membrane-bound organelles.
- 7. Double-layer of phospholipids that forms a boundary between a cell and the surrounding environment & controls the passage of materials into & out of a cell.
- 8. Organelle that links amino acids together to form proteins.
- 9. Small organelle that contains & transports materials within the cytoplasm.
- 11. Organelle that is used to store materials such as water, food, or enzymes, that are needed by the cell.
- 13. Stack of flat, membrane-enclosed spaces containing enzymes that process, sort, & deliver proteins.
- 14. Movement of dissolved molecules in a fluid or gas from higher concentration to lower concentration.
- 15. Network of proteins, such as microtubules & microfilaments, inside a eukaryotic cell that supports & shapes the cell.
- 16. Type of endocytosis in which the cell membrane engulfs large particles.
- 18. Difference in the concentration of a substance from one location to another.
- 19. All organisms are made up of cells. All existing cells are produced by other living things. The cell is the most basic unit of life.
- 21. Jellylike substance inside cells that contains molecules & organelles.
- 26. Small cylinder-shaped organelle made of protein tubes arranged in a circle, aids mitosis.
- 27. Solution that has a higher concentration of dissolved particles than a cell.
- 29. Rigid structure that gives protection, support, & shape to cells in plants, algae, fungi, & bacteria.
- 31. Organelle composed of a double membrane that acts as the storehouse for most of a cell's DNA.