Cells

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Across
  1. 4. specialized structure within a cell that performs a specific function.
  2. 7. thin layer that encloses the cytoplasm of a cell and controls what enters and leaves the cell.
  3. 8. A network of protein filaments that provides structural support and helps the cell maintain its shape.
  4. 10. A large, membrane-bound sac that stores water, food, and waste. It is especially prominent in plant cells.
  5. 11. group of similar cells that work together to perform a specific function.
  6. 12. Often called the "powerhouse" of the cell, this organelle is responsible for generating most of the cell's energy.
  7. 15. An organelle containing enzymes that break down and digest waste materials, old cell parts, and foreign particles.
  8. 17. rigid layer surrounding the cell membrane in plant cells, fungi, and bacteria, providing structural support and protection.
  9. 18. single-celled organism that lacks a nucleus and other membrane-bound organelles. Examples include bacteria and archaea.
Down
  1. 1. jelly-like substance within a cell, but outside the nucleus, where the organelles are suspended.
  2. 2. An organism whose cells contain a nucleus and other organelles. Examples include plants, animals, fungi, and protists.
  3. 3. small, membrane-enclosed sac that stores and transports substances within a cell.
  4. 5. dense structure within the nucleus where ribosomes are made.
  5. 6. (ER): A network of membranes that helps transport materials throughout the cell. It can be "rough" (with ribosomes) or "smooth" (without ribosome apparatus: An organelle that modifies, sorts, and packages proteins and lipids for storage or transport out of the cell.
  6. 8. complex of DNA and proteins that forms chromoso mes within the nucleus of eukaryotic cells.
  7. 9. membrane-bound organelle that contains the cell's genetic material (DNA) and controls cell growth and reproduction.
  8. 13. organelle found in plant cells and other eukaryotic organisms that conducts photosynthesis.
  9. 14. The site of protein synthesis in the cell. They can be found in the cytoplasm or attachReticulum endoplasmic reticulum.
  10. 16. basic structural and functional unit of all known living organisms.