Cell Structure and Function

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