Cell Structure and Function

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Across
  1. 1. A tiny, membrane-bound ball-like structure that transports substances from one area of a cell to another area of a cell.
  2. 3. The largest organelle in a cell that contains proteins; directs cell activities and contains genetic information (DNA).
  3. 6. Small structures made in the nucleolus that are not surrounded by a membrane; found in cytoplasm or attached to rough ER and makes proteins.
  4. 8. An organelle that is near the ER; looks like a stack of pancakes; prepares proteins for specific jobs or functions; packages proteins into vesicles
  5. 9. A network of thread-like proteins that provide a framework for the cell; provides shape and movement for the cell.
  6. 13. A folded, web-like membrane that spreads from the nucleus throughout the cell with ribosomes attached to it, which is the site of protein production.
  7. 14. A long, tail-like appendage that is made of protein and whips back and forth to cause movement for the cell
  8. 15. A sac-like structures; plant has one large one and animal cells have several smaller ones that store food, water, and waste materials
  9. 16. A unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
  10. 17. A jell-like fluid inside cells made of salts and other molecules (such as water), which contains the cell’s organelles and cytoskeleton.
  11. 19. A bean shaped organelle that is surrounded by two membranes and releases energy (ATP) during chemical reactions.
Down
  1. 2. A semi-permeable, flexible covering made of proteins and lipids that protects the cell from the outside environment
  2. 3. Two membranes that surround the nucleus; contains pores and allows molecules to move in and out of the nucleus.
  3. 4. A folded, web-like membrane that spreads from the nucleus throughout the cell which makes lipids and helps remove harmful substances from a cell.
  4. 5. A membrane bound organelle that contains chlorophyll, which uses light energy to make food (glucose) during photosynthesis.
  5. 7. Short, hair-like structures which are made of protein and move the cell or move molecules away from the cell.
  6. 10. A type of vesicle; small and round that breaks down and recycles cellular components (cell parts.)
  7. 11. A large dark spot in the nucleus that makes ribosomes.
  8. 12. A unicellular or multicellular organism that has membrane-bound nucleus and other membrane-bound organelles.
  9. 18. A stiff structure outside the cell membrane that protects the cell from attack by viruses; helps cell maintain shape and gives structure support.