Cells and Organelles Crossword

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Across
  1. 2. membrane separates the interior of a cell from the outside environment
  2. 3. one cell
  3. 6. often referred to as the powerhouse of cells
  4. 7. protein fibers that give shape and structure to cells in the body
  5. 9. an organelle found in both animal and plant cells
  6. 13. an organism whose cells contain a nucleus within a membrane
  7. 14. area inside of the nucleus of a cell
  8. 16. a small sac formed by a membrane filled with liquid
  9. 17. reticulum network of membranes inside of a cell
  10. 18. the building blocks of plants
Down
  1. 1. the basic structural and functional units of animal tissues and organs
  2. 2. smallest unit of all living organisms
  3. 4. the gelatinous liquid that fills the inside of a cell
  4. 5. membraneous organelle covered in ribosomes
  5. 6. multiple cells
  6. 8. single celled organism that doesn't have a nucleus
  7. 10. the central part of a cell
  8. 11. structure found inside cells that involve making proteins
  9. 12. a stack of small flat sacs formed by membranes inside the cells cytoplasm
  10. 15. an organelle within the cells of plants that is the site of photosynthesis